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Finding the Fourth Proportional to 159,935.76, 239,833.44 and 85,037.76

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Solution

The fourth proportional to 159,935.76, 239,833.44 and 85,037.76 is: 127,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,935.76 : 239,833.44 = 85,037.76 : x
  2. Step 2: Convert to fraction form
    159,935.76/239,833.44 = 85,037.76/x
  3. Step 3: Cross multiply
    159,935.76x = 239,833.44 × 85,037.76
  4. Step 4: Simplify right side
    159,935.76x = 20,394,898,510.69
  5. Step 5: Solve for x
    x = 20,394,898,510.69/159,935.76
  6. Step 6: Final answer
    x = 127,519.31

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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.