Home / 189,123.04-283,691.76-70,781.92

Finding the Fourth Proportional to 189,123.04, 283,691.76 and 70,781.92

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Solution

The fourth proportional to 189,123.04, 283,691.76 and 70,781.92 is: 106,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,123.04 : 283,691.76 = 70,781.92 : x
  2. Step 2: Convert to fraction form
    189,123.04/283,691.76 = 70,781.92/x
  3. Step 3: Cross multiply
    189,123.04x = 283,691.76 × 70,781.92
  4. Step 4: Simplify right side
    189,123.04x = 20,080,247,460.98
  5. Step 5: Solve for x
    x = 20,080,247,460.98/189,123.04
  6. Step 6: Final answer
    x = 106,175.57

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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.