Home / 109,066.28-163,686.92-56,490.80

Finding the Fourth Proportional to 109,066.28, 163,686.92 and 56,490.80

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Solution

The fourth proportional to 109,066.28, 163,686.92 and 56,490.80 is: 84,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,066.28 : 163,686.92 = 56,490.80 : x
  2. Step 2: Convert to fraction form
    109,066.28/163,686.92 = 56,490.80/x
  3. Step 3: Cross multiply
    109,066.28x = 163,686.92 × 56,490.80
  4. Step 4: Simplify right side
    109,066.28x = 9,246,805,187.10
  5. Step 5: Solve for x
    x = 9,246,805,187.10/109,066.28
  6. Step 6: Final answer
    x = 84,781.52

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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.