Home / 108,828.28-163,144-38,691.18

Finding the Fourth Proportional to 108,828.28, 163,144 and 38,691.18

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Solution

The fourth proportional to 108,828.28, 163,144 and 38,691.18 is: 58,001.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,828.28 : 163,144 = 38,691.18 : x
  2. Step 2: Convert to fraction form
    108,828.28/163,144 = 38,691.18/x
  3. Step 3: Cross multiply
    108,828.28x = 163,144 × 38,691.18
  4. Step 4: Simplify right side
    108,828.28x = 6,312,233,869.92
  5. Step 5: Solve for x
    x = 6,312,233,869.92/108,828.28
  6. Step 6: Final answer
    x = 58,001.78

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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.