Home / 124,711.20-172,101.04-68,122.56

Finding the Fourth Proportional to 124,711.20, 172,101.04 and 68,122.56

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Solution

The fourth proportional to 124,711.20, 172,101.04 and 68,122.56 is: 94,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,711.20 : 172,101.04 = 68,122.56 : x
  2. Step 2: Convert to fraction form
    124,711.20/172,101.04 = 68,122.56/x
  3. Step 3: Cross multiply
    124,711.20x = 172,101.04 × 68,122.56
  4. Step 4: Simplify right side
    124,711.20x = 11,723,963,423.46
  5. Step 5: Solve for x
    x = 11,723,963,423.46/124,711.20
  6. Step 6: Final answer
    x = 94,008.91

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1.5x scale

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.