Home / 124,697.25-172,082.21-68,108.76

Finding the Fourth Proportional to 124,697.25, 172,082.21 and 68,108.76

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Solution

The fourth proportional to 124,697.25, 172,082.21 and 68,108.76 is: 93,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,697.25 : 172,082.21 = 68,108.76 : x
  2. Step 2: Convert to fraction form
    124,697.25/172,082.21 = 68,108.76/x
  3. Step 3: Cross multiply
    124,697.25x = 172,082.21 × 68,108.76
  4. Step 4: Simplify right side
    124,697.25x = 11,720,305,600.62
  5. Step 5: Solve for x
    x = 11,720,305,600.62/124,697.25
  6. Step 6: Final answer
    x = 93,990.09

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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.