Home / 124,229.12-171,436.38-67,640.72

Finding the Fourth Proportional to 124,229.12, 171,436.38 and 67,640.72

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Solution

The fourth proportional to 124,229.12, 171,436.38 and 67,640.72 is: 93,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,229.12 : 171,436.38 = 67,640.72 : x
  2. Step 2: Convert to fraction form
    124,229.12/171,436.38 = 67,640.72/x
  3. Step 3: Cross multiply
    124,229.12x = 171,436.38 × 67,640.72
  4. Step 4: Simplify right side
    124,229.12x = 11,596,080,177.39
  5. Step 5: Solve for x
    x = 11,596,080,177.39/124,229.12
  6. Step 6: Final answer
    x = 93,344.30

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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.