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Finding the Fourth Proportional to 159,803.52, 239,562.72 and 66,249.60

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Solution

The fourth proportional to 159,803.52, 239,562.72 and 66,249.60 is: 99,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,803.52 : 239,562.72 = 66,249.60 : x
  2. Step 2: Convert to fraction form
    159,803.52/239,562.72 = 66,249.60/x
  3. Step 3: Cross multiply
    159,803.52x = 239,562.72 × 66,249.60
  4. Step 4: Simplify right side
    159,803.52x = 15,870,934,374.91
  5. Step 5: Solve for x
    x = 15,870,934,374.91/159,803.52
  6. Step 6: Final answer
    x = 99,315.30

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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.