Home / 122,531.39-169,073.46-76,585.60

Finding the Fourth Proportional to 122,531.39, 169,073.46 and 76,585.60

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Solution

The fourth proportional to 122,531.39, 169,073.46 and 76,585.60 is: 105,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,531.39 : 169,073.46 = 76,585.60 : x
  2. Step 2: Convert to fraction form
    122,531.39/169,073.46 = 76,585.60/x
  3. Step 3: Cross multiply
    122,531.39x = 169,073.46 × 76,585.60
  4. Step 4: Simplify right side
    122,531.39x = 12,948,592,589.52
  5. Step 5: Solve for x
    x = 12,948,592,589.52/122,531.39
  6. Step 6: Final answer
    x = 105,675.72

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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.