Home / 159,572.20-220,214.55-91,601.59

Finding the Fourth Proportional to 159,572.20, 220,214.55 and 91,601.59

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Solution

The fourth proportional to 159,572.20, 220,214.55 and 91,601.59 is: 126,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,572.20 : 220,214.55 = 91,601.59 : x
  2. Step 2: Convert to fraction form
    159,572.20/220,214.55 = 91,601.59/x
  3. Step 3: Cross multiply
    159,572.20x = 220,214.55 × 91,601.59
  4. Step 4: Simplify right side
    159,572.20x = 20,172,002,921.13
  5. Step 5: Solve for x
    x = 20,172,002,921.13/159,572.20
  6. Step 6: Final answer
    x = 126,413.02

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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.