Home / 108,609.13-149,874.40-63,294.49

Finding the Fourth Proportional to 108,609.13, 149,874.40 and 63,294.49

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Solution

The fourth proportional to 108,609.13, 149,874.40 and 63,294.49 is: 87,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,609.13 : 149,874.40 = 63,294.49 : x
  2. Step 2: Convert to fraction form
    108,609.13/149,874.40 = 63,294.49/x
  3. Step 3: Cross multiply
    108,609.13x = 149,874.40 × 63,294.49
  4. Step 4: Simplify right side
    108,609.13x = 9,486,223,712.06
  5. Step 5: Solve for x
    x = 9,486,223,712.06/108,609.13
  6. Step 6: Final answer
    x = 87,342.78

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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.