Home / 121,502.20-182,034.60-99,194.80

Finding the Fourth Proportional to 121,502.20, 182,034.60 and 99,194.80

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Solution

The fourth proportional to 121,502.20, 182,034.60 and 99,194.80 is: 148,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,502.20 : 182,034.60 = 99,194.80 : x
  2. Step 2: Convert to fraction form
    121,502.20/182,034.60 = 99,194.80/x
  3. Step 3: Cross multiply
    121,502.20x = 182,034.60 × 99,194.80
  4. Step 4: Simplify right side
    121,502.20x = 18,056,885,740.08
  5. Step 5: Solve for x
    x = 18,056,885,740.08/121,502.20
  6. Step 6: Final answer
    x = 148,613.65

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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.