Home / 122,680.22-169,301.43-74,959.88

Finding the Fourth Proportional to 122,680.22, 169,301.43 and 74,959.88

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Solution

The fourth proportional to 122,680.22, 169,301.43 and 74,959.88 is: 103,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,680.22 : 169,301.43 = 74,959.88 : x
  2. Step 2: Convert to fraction form
    122,680.22/169,301.43 = 74,959.88/x
  3. Step 3: Cross multiply
    122,680.22x = 169,301.43 × 74,959.88
  4. Step 4: Simplify right side
    122,680.22x = 12,690,814,030.12
  5. Step 5: Solve for x
    x = 12,690,814,030.12/122,680.22
  6. Step 6: Final answer
    x = 103,446.30

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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.