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Finding the Fourth Proportional to 159,244.80, 219,732.72 and 91,248.70

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Solution

The fourth proportional to 159,244.80, 219,732.72 and 91,248.70 is: 125,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,244.80 : 219,732.72 = 91,248.70 : x
  2. Step 2: Convert to fraction form
    159,244.80/219,732.72 = 91,248.70/x
  3. Step 3: Cross multiply
    159,244.80x = 219,732.72 × 91,248.70
  4. Step 4: Simplify right side
    159,244.80x = 20,050,325,047.46
  5. Step 5: Solve for x
    x = 20,050,325,047.46/159,244.80
  6. Step 6: Final answer
    x = 125,908.82

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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.