Home / 124,710.20-172,097.28-68,121.80

Finding the Fourth Proportional to 124,710.20, 172,097.28 and 68,121.80

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Solution

The fourth proportional to 124,710.20, 172,097.28 and 68,121.80 is: 94,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,710.20 : 172,097.28 = 68,121.80 : x
  2. Step 2: Convert to fraction form
    124,710.20/172,097.28 = 68,121.80/x
  3. Step 3: Cross multiply
    124,710.20x = 172,097.28 × 68,121.80
  4. Step 4: Simplify right side
    124,710.20x = 11,723,576,488.70
  5. Step 5: Solve for x
    x = 11,723,576,488.70/124,710.20
  6. Step 6: Final answer
    x = 94,006.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.