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Finding the Fourth Proportional to 121,179.60, 181,769.40 and 32,446.80

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Solution

The fourth proportional to 121,179.60, 181,769.40 and 32,446.80 is: 48,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,179.60 : 181,769.40 = 32,446.80 : x
  2. Step 2: Convert to fraction form
    121,179.60/181,769.40 = 32,446.80/x
  3. Step 3: Cross multiply
    121,179.60x = 181,769.40 × 32,446.80
  4. Step 4: Simplify right side
    121,179.60x = 5,897,835,367.92
  5. Step 5: Solve for x
    x = 5,897,835,367.92/121,179.60
  6. Step 6: Final answer
    x = 48,670.20

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1.5x scale

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.