Home / 121,207.20-167,254.80-89,393.60

Finding the Fourth Proportional to 121,207.20, 167,254.80 and 89,393.60

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Solution

The fourth proportional to 121,207.20, 167,254.80 and 89,393.60 is: 123,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,207.20 : 167,254.80 = 89,393.60 : x
  2. Step 2: Convert to fraction form
    121,207.20/167,254.80 = 89,393.60/x
  3. Step 3: Cross multiply
    121,207.20x = 167,254.80 × 89,393.60
  4. Step 4: Simplify right side
    121,207.20x = 14,951,508,689.28
  5. Step 5: Solve for x
    x = 14,951,508,689.28/121,207.20
  6. Step 6: Final answer
    x = 123,354.95

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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.