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Finding the Fourth Proportional to 159,205.91, 238,612.04 and 80,342.69

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Solution

The fourth proportional to 159,205.91, 238,612.04 and 80,342.69 is: 120,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,205.91 : 238,612.04 = 80,342.69 : x
  2. Step 2: Convert to fraction form
    159,205.91/238,612.04 = 80,342.69/x
  3. Step 3: Cross multiply
    159,205.91x = 238,612.04 × 80,342.69
  4. Step 4: Simplify right side
    159,205.91x = 19,170,732,758.27
  5. Step 5: Solve for x
    x = 19,170,732,758.27/159,205.91
  6. Step 6: Final answer
    x = 120,414.71

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1.5x scale

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.