Home / 121,110.60-181,493.10-89,272.20

Finding the Fourth Proportional to 121,110.60, 181,493.10 and 89,272.20

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Solution

The fourth proportional to 121,110.60, 181,493.10 and 89,272.20 is: 133,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,110.60 : 181,493.10 = 89,272.20 : x
  2. Step 2: Convert to fraction form
    121,110.60/181,493.10 = 89,272.20/x
  3. Step 3: Cross multiply
    121,110.60x = 181,493.10 × 89,272.20
  4. Step 4: Simplify right side
    121,110.60x = 16,202,288,321.82
  5. Step 5: Solve for x
    x = 16,202,288,321.82/121,110.60
  6. Step 6: Final answer
    x = 133,780.93

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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.