Home / 124,839.37-172,279.12-67,478.58

Finding the Fourth Proportional to 124,839.37, 172,279.12 and 67,478.58

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Solution

The fourth proportional to 124,839.37, 172,279.12 and 67,478.58 is: 93,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,839.37 : 172,279.12 = 67,478.58 : x
  2. Step 2: Convert to fraction form
    124,839.37/172,279.12 = 67,478.58/x
  3. Step 3: Cross multiply
    124,839.37x = 172,279.12 × 67,478.58
  4. Step 4: Simplify right side
    124,839.37x = 11,625,150,212.55
  5. Step 5: Solve for x
    x = 11,625,150,212.55/124,839.37
  6. Step 6: Final answer
    x = 93,120.87

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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.