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Finding the Fourth Proportional to 159,475.80, 239,246.10 and 54,305.40

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Solution

The fourth proportional to 159,475.80, 239,246.10 and 54,305.40 is: 81,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,475.80 : 239,246.10 = 54,305.40 : x
  2. Step 2: Convert to fraction form
    159,475.80/239,246.10 = 54,305.40/x
  3. Step 3: Cross multiply
    159,475.80x = 239,246.10 × 54,305.40
  4. Step 4: Simplify right side
    159,475.80x = 12,992,355,158.94
  5. Step 5: Solve for x
    x = 12,992,355,158.94/159,475.80
  6. Step 6: Final answer
    x = 81,469.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.