Home / 108,171.72-149,270.40-60,428.16

Finding the Fourth Proportional to 108,171.72, 149,270.40 and 60,428.16

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Solution

The fourth proportional to 108,171.72, 149,270.40 and 60,428.16 is: 83,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,171.72 : 149,270.40 = 60,428.16 : x
  2. Step 2: Convert to fraction form
    108,171.72/149,270.40 = 60,428.16/x
  3. Step 3: Cross multiply
    108,171.72x = 149,270.40 × 60,428.16
  4. Step 4: Simplify right side
    108,171.72x = 9,020,135,614.46
  5. Step 5: Solve for x
    x = 9,020,135,614.46/108,171.72
  6. Step 6: Final answer
    x = 83,387.19

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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.