Home / 108,387.30-149,508.99-71,593.74

Finding the Fourth Proportional to 108,387.30, 149,508.99 and 71,593.74

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Solution

The fourth proportional to 108,387.30, 149,508.99 and 71,593.74 is: 98,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,387.30 : 149,508.99 = 71,593.74 : x
  2. Step 2: Convert to fraction form
    108,387.30/149,508.99 = 71,593.74/x
  3. Step 3: Cross multiply
    108,387.30x = 149,508.99 × 71,593.74
  4. Step 4: Simplify right side
    108,387.30x = 10,703,907,757.72
  5. Step 5: Solve for x
    x = 10,703,907,757.72/108,387.30
  6. Step 6: Final answer
    x = 98,756.11

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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.