Home / 147,931.56-204,148.68-80,863.56

Finding the Fourth Proportional to 147,931.56, 204,148.68 and 80,863.56

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Solution

The fourth proportional to 147,931.56, 204,148.68 and 80,863.56 is: 111,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,931.56 : 204,148.68 = 80,863.56 : x
  2. Step 2: Convert to fraction form
    147,931.56/204,148.68 = 80,863.56/x
  3. Step 3: Cross multiply
    147,931.56x = 204,148.68 × 80,863.56
  4. Step 4: Simplify right side
    147,931.56x = 16,508,189,034.10
  5. Step 5: Solve for x
    x = 16,508,189,034.10/147,931.56
  6. Step 6: Final answer
    x = 111,593.42

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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.