Home / 239,523.67-359,318.31-81,709.75

Finding the Fourth Proportional to 239,523.67, 359,318.31 and 81,709.75

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Solution

The fourth proportional to 239,523.67, 359,318.31 and 81,709.75 is: 122,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,523.67 : 359,318.31 = 81,709.75 : x
  2. Step 2: Convert to fraction form
    239,523.67/359,318.31 = 81,709.75/x
  3. Step 3: Cross multiply
    239,523.67x = 359,318.31 × 81,709.75
  4. Step 4: Simplify right side
    239,523.67x = 29,359,809,280.52
  5. Step 5: Solve for x
    x = 29,359,809,280.52/239,523.67
  6. Step 6: Final answer
    x = 122,575.82

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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.