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Finding the Fourth Proportional to 159,284.72, 239,074.88 and 80,454.32

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Solution

The fourth proportional to 159,284.72, 239,074.88 and 80,454.32 is: 120,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,284.72 : 239,074.88 = 80,454.32 : x
  2. Step 2: Convert to fraction form
    159,284.72/239,074.88 = 80,454.32/x
  3. Step 3: Cross multiply
    159,284.72x = 239,074.88 × 80,454.32
  4. Step 4: Simplify right side
    159,284.72x = 19,234,606,899.48
  5. Step 5: Solve for x
    x = 19,234,606,899.48/159,284.72
  6. Step 6: Final answer
    x = 120,756.13

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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.