Home / 108,979.84-163,489.20-42,456.16

Finding the Fourth Proportional to 108,979.84, 163,489.20 and 42,456.16

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Solution

The fourth proportional to 108,979.84, 163,489.20 and 42,456.16 is: 63,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.84 : 163,489.20 = 42,456.16 : x
  2. Step 2: Convert to fraction form
    108,979.84/163,489.20 = 42,456.16/x
  3. Step 3: Cross multiply
    108,979.84x = 163,489.20 × 42,456.16
  4. Step 4: Simplify right side
    108,979.84x = 6,941,123,633.47
  5. Step 5: Solve for x
    x = 6,941,123,633.47/108,979.84
  6. Step 6: Final answer
    x = 63,691.81

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1.5x scale

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.