Home / 105,385.33-158,086.25-30,506.60

Finding the Fourth Proportional to 105,385.33, 158,086.25 and 30,506.60

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Solution

The fourth proportional to 105,385.33, 158,086.25 and 30,506.60 is: 45,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,385.33 : 158,086.25 = 30,506.60 : x
  2. Step 2: Convert to fraction form
    105,385.33/158,086.25 = 30,506.60/x
  3. Step 3: Cross multiply
    105,385.33x = 158,086.25 × 30,506.60
  4. Step 4: Simplify right side
    105,385.33x = 4,822,674,351.33
  5. Step 5: Solve for x
    x = 4,822,674,351.33/105,385.33
  6. Step 6: Final answer
    x = 45,762.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.