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Finding the Fourth Proportional to 159,565.32, 239,396.58 and 75,390.12

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Solution

The fourth proportional to 159,565.32, 239,396.58 and 75,390.12 is: 113,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,565.32 : 239,396.58 = 75,390.12 : x
  2. Step 2: Convert to fraction form
    159,565.32/239,396.58 = 75,390.12/x
  3. Step 3: Cross multiply
    159,565.32x = 239,396.58 × 75,390.12
  4. Step 4: Simplify right side
    159,565.32x = 18,048,136,893.79
  5. Step 5: Solve for x
    x = 18,048,136,893.79/159,565.32
  6. Step 6: Final answer
    x = 113,108.14

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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.