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Finding the Fourth Proportional to 159,207.52, 219,737.78 and 91,270.12

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Solution

The fourth proportional to 159,207.52, 219,737.78 and 91,270.12 is: 125,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,207.52 : 219,737.78 = 91,270.12 : x
  2. Step 2: Convert to fraction form
    159,207.52/219,737.78 = 91,270.12/x
  3. Step 3: Cross multiply
    159,207.52x = 219,737.78 × 91,270.12
  4. Step 4: Simplify right side
    159,207.52x = 20,055,493,549.13
  5. Step 5: Solve for x
    x = 20,055,493,549.13/159,207.52
  6. Step 6: Final answer
    x = 125,970.77

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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.