Home / 105,210.33-145,094.10-82,243.19

Finding the Fourth Proportional to 105,210.33, 145,094.10 and 82,243.19

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Solution

The fourth proportional to 105,210.33, 145,094.10 and 82,243.19 is: 113,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,210.33 : 145,094.10 = 82,243.19 : x
  2. Step 2: Convert to fraction form
    105,210.33/145,094.10 = 82,243.19/x
  3. Step 3: Cross multiply
    105,210.33x = 145,094.10 × 82,243.19
  4. Step 4: Simplify right side
    105,210.33x = 11,933,001,634.18
  5. Step 5: Solve for x
    x = 11,933,001,634.18/105,210.33
  6. Step 6: Final answer
    x = 113,420.44

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Half scale
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Double scale
Find fourth proportional to 105,211.33, 145,095.48 and 82,244.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.