Home / 121,418.20-182,127.30-88,370.20

Finding the Fourth Proportional to 121,418.20, 182,127.30 and 88,370.20

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Solution

The fourth proportional to 121,418.20, 182,127.30 and 88,370.20 is: 132,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418.20 : 182,127.30 = 88,370.20 : x
  2. Step 2: Convert to fraction form
    121,418.20/182,127.30 = 88,370.20/x
  3. Step 3: Cross multiply
    121,418.20x = 182,127.30 × 88,370.20
  4. Step 4: Simplify right side
    121,418.20x = 16,094,625,926.46
  5. Step 5: Solve for x
    x = 16,094,625,926.46/121,418.20
  6. Step 6: Final answer
    x = 132,555.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.