Home / 122,291.20-168,752.88-67,839.28

Finding the Fourth Proportional to 122,291.20, 168,752.88 and 67,839.28

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Solution

The fourth proportional to 122,291.20, 168,752.88 and 67,839.28 is: 93,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,291.20 : 168,752.88 = 67,839.28 : x
  2. Step 2: Convert to fraction form
    122,291.20/168,752.88 = 67,839.28/x
  3. Step 3: Cross multiply
    122,291.20x = 168,752.88 × 67,839.28
  4. Step 4: Simplify right side
    122,291.20x = 11,448,073,877.13
  5. Step 5: Solve for x
    x = 11,448,073,877.13/122,291.20
  6. Step 6: Final answer
    x = 93,613.23

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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.