Home / 147,286.76-203,269.86-90,731.24

Finding the Fourth Proportional to 147,286.76, 203,269.86 and 90,731.24

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Solution

The fourth proportional to 147,286.76, 203,269.86 and 90,731.24 is: 125,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,286.76 : 203,269.86 = 90,731.24 : x
  2. Step 2: Convert to fraction form
    147,286.76/203,269.86 = 90,731.24/x
  3. Step 3: Cross multiply
    147,286.76x = 203,269.86 × 90,731.24
  4. Step 4: Simplify right side
    147,286.76x = 18,442,926,452.43
  5. Step 5: Solve for x
    x = 18,442,926,452.43/147,286.76
  6. Step 6: Final answer
    x = 125,217.82

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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.