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Finding the Fourth Proportional to 159,680.76, 220,356.54 and 88,067.40

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Solution

The fourth proportional to 159,680.76, 220,356.54 and 88,067.40 is: 121,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,680.76 : 220,356.54 = 88,067.40 : x
  2. Step 2: Convert to fraction form
    159,680.76/220,356.54 = 88,067.40/x
  3. Step 3: Cross multiply
    159,680.76x = 220,356.54 × 88,067.40
  4. Step 4: Simplify right side
    159,680.76x = 19,406,227,550.80
  5. Step 5: Solve for x
    x = 19,406,227,550.80/159,680.76
  6. Step 6: Final answer
    x = 121,531.41

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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.