Home / 159,318.36-239,124.96-80,487.72

Finding the Fourth Proportional to 159,318.36, 239,124.96 and 80,487.72

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Solution

The fourth proportional to 159,318.36, 239,124.96 and 80,487.72 is: 120,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,318.36 : 239,124.96 = 80,487.72 : x
  2. Step 2: Convert to fraction form
    159,318.36/239,124.96 = 80,487.72/x
  3. Step 3: Cross multiply
    159,318.36x = 239,124.96 × 80,487.72
  4. Step 4: Simplify right side
    159,318.36x = 19,246,622,825.49
  5. Step 5: Solve for x
    x = 19,246,622,825.49/159,318.36
  6. Step 6: Final answer
    x = 120,806.06

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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.