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Finding the Fourth Proportional to 159,737.92, 220,448.40 and 91,776.64

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Solution

The fourth proportional to 159,737.92, 220,448.40 and 91,776.64 is: 126,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,737.92 : 220,448.40 = 91,776.64 : x
  2. Step 2: Convert to fraction form
    159,737.92/220,448.40 = 91,776.64/x
  3. Step 3: Cross multiply
    159,737.92x = 220,448.40 × 91,776.64
  4. Step 4: Simplify right side
    159,737.92x = 20,232,013,445.38
  5. Step 5: Solve for x
    x = 20,232,013,445.38/159,737.92
  6. Step 6: Final answer
    x = 126,657.55

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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.