Home / 124,715.42-172,100.86-68,115.86

Finding the Fourth Proportional to 124,715.42, 172,100.86 and 68,115.86

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Solution

The fourth proportional to 124,715.42, 172,100.86 and 68,115.86 is: 93,996.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.42 : 172,100.86 = 68,115.86 : x
  2. Step 2: Convert to fraction form
    124,715.42/172,100.86 = 68,115.86/x
  3. Step 3: Cross multiply
    124,715.42x = 172,100.86 × 68,115.86
  4. Step 4: Simplify right side
    124,715.42x = 11,722,797,054.85
  5. Step 5: Solve for x
    x = 11,722,797,054.85/124,715.42
  6. Step 6: Final answer
    x = 93,996.38

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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.