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Finding the Fourth Proportional to 159,511.17, 220,123.65 and 90,600.15

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Solution

The fourth proportional to 159,511.17, 220,123.65 and 90,600.15 is: 125,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,511.17 : 220,123.65 = 90,600.15 : x
  2. Step 2: Convert to fraction form
    159,511.17/220,123.65 = 90,600.15/x
  3. Step 3: Cross multiply
    159,511.17x = 220,123.65 × 90,600.15
  4. Step 4: Simplify right side
    159,511.17x = 19,943,235,708.55
  5. Step 5: Solve for x
    x = 19,943,235,708.55/159,511.17
  6. Step 6: Final answer
    x = 125,027.20

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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.