Home / 129,612.42-194,419.56-40,873.08

Finding the Fourth Proportional to 129,612.42, 194,419.56 and 40,873.08

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Solution

The fourth proportional to 129,612.42, 194,419.56 and 40,873.08 is: 61,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,612.42 : 194,419.56 = 40,873.08 : x
  2. Step 2: Convert to fraction form
    129,612.42/194,419.56 = 40,873.08/x
  3. Step 3: Cross multiply
    129,612.42x = 194,419.56 × 40,873.08
  4. Step 4: Simplify right side
    129,612.42x = 7,946,526,229.44
  5. Step 5: Solve for x
    x = 7,946,526,229.44/129,612.42
  6. Step 6: Final answer
    x = 61,309.91

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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.