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Finding the Fourth Proportional to 159,759.47, 220,468.80 and 88,139.46

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Solution

The fourth proportional to 159,759.47, 220,468.80 and 88,139.46 is: 121,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,759.47 : 220,468.80 = 88,139.46 : x
  2. Step 2: Convert to fraction form
    159,759.47/220,468.80 = 88,139.46/x
  3. Step 3: Cross multiply
    159,759.47x = 220,468.80 × 88,139.46
  4. Step 4: Simplify right side
    159,759.47x = 19,432,000,978.85
  5. Step 5: Solve for x
    x = 19,432,000,978.85/159,759.47
  6. Step 6: Final answer
    x = 121,632.86

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1.5x scale

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.