Home / 124,229.76-171,434.88-67,640.16

Finding the Fourth Proportional to 124,229.76, 171,434.88 and 67,640.16

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Solution

The fourth proportional to 124,229.76, 171,434.88 and 67,640.16 is: 93,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,229.76 : 171,434.88 = 67,640.16 : x
  2. Step 2: Convert to fraction form
    124,229.76/171,434.88 = 67,640.16/x
  3. Step 3: Cross multiply
    124,229.76x = 171,434.88 × 67,640.16
  4. Step 4: Simplify right side
    124,229.76x = 11,595,882,712.78
  5. Step 5: Solve for x
    x = 11,595,882,712.78/124,229.76
  6. Step 6: Final answer
    x = 93,342.23

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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.