Home / 121,229.12-181,839.43-36,985.88

Finding the Fourth Proportional to 121,229.12, 181,839.43 and 36,985.88

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Solution

The fourth proportional to 121,229.12, 181,839.43 and 36,985.88 is: 55,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,229.12 : 181,839.43 = 36,985.88 : x
  2. Step 2: Convert to fraction form
    121,229.12/181,839.43 = 36,985.88/x
  3. Step 3: Cross multiply
    121,229.12x = 181,839.43 × 36,985.88
  4. Step 4: Simplify right side
    121,229.12x = 6,725,491,337.25
  5. Step 5: Solve for x
    x = 6,725,491,337.25/121,229.12
  6. Step 6: Final answer
    x = 55,477.52

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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.