Home / 261,493.20-392,132.28-103,699.92

Finding the Fourth Proportional to 261,493.20, 392,132.28 and 103,699.92

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Solution

The fourth proportional to 261,493.20, 392,132.28 and 103,699.92 is: 155,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,493.20 : 392,132.28 = 103,699.92 : x
  2. Step 2: Convert to fraction form
    261,493.20/392,132.28 = 103,699.92/x
  3. Step 3: Cross multiply
    261,493.20x = 392,132.28 × 103,699.92
  4. Step 4: Simplify right side
    261,493.20x = 40,664,086,065.42
  5. Step 5: Solve for x
    x = 40,664,086,065.42/261,493.20
  6. Step 6: Final answer
    x = 155,507.24

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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.