Home / 140,691.05-194,172.12-80,247.81

Finding the Fourth Proportional to 140,691.05, 194,172.12 and 80,247.81

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Solution

The fourth proportional to 140,691.05, 194,172.12 and 80,247.81 is: 110,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,691.05 : 194,172.12 = 80,247.81 : x
  2. Step 2: Convert to fraction form
    140,691.05/194,172.12 = 80,247.81/x
  3. Step 3: Cross multiply
    140,691.05x = 194,172.12 × 80,247.81
  4. Step 4: Simplify right side
    140,691.05x = 15,581,887,393.06
  5. Step 5: Solve for x
    x = 15,581,887,393.06/140,691.05
  6. Step 6: Final answer
    x = 110,752.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.