Home / 103,574.96-142,877.40-85,563.44

Finding the Fourth Proportional to 103,574.96, 142,877.40 and 85,563.44

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Solution

The fourth proportional to 103,574.96, 142,877.40 and 85,563.44 is: 118,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.96 : 142,877.40 = 85,563.44 : x
  2. Step 2: Convert to fraction form
    103,574.96/142,877.40 = 85,563.44/x
  3. Step 3: Cross multiply
    103,574.96x = 142,877.40 × 85,563.44
  4. Step 4: Simplify right side
    103,574.96x = 12,225,081,842.26
  5. Step 5: Solve for x
    x = 12,225,081,842.26/103,574.96
  6. Step 6: Final answer
    x = 118,031.25

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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.