Home / 159,743.38-239,762.62-80,912.96

Finding the Fourth Proportional to 159,743.38, 239,762.62 and 80,912.96

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Solution

The fourth proportional to 159,743.38, 239,762.62 and 80,912.96 is: 121,444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,743.38 : 239,762.62 = 80,912.96 : x
  2. Step 2: Convert to fraction form
    159,743.38/239,762.62 = 80,912.96/x
  3. Step 3: Cross multiply
    159,743.38x = 239,762.62 × 80,912.96
  4. Step 4: Simplify right side
    159,743.38x = 19,399,903,281.56
  5. Step 5: Solve for x
    x = 19,399,903,281.56/159,743.38
  6. Step 6: Final answer
    x = 121,444.18

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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.