Home / 134,772.38-185,982.60-74,341.70

Finding the Fourth Proportional to 134,772.38, 185,982.60 and 74,341.70

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Solution

The fourth proportional to 134,772.38, 185,982.60 and 74,341.70 is: 102,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,772.38 : 185,982.60 = 74,341.70 : x
  2. Step 2: Convert to fraction form
    134,772.38/185,982.60 = 74,341.70/x
  3. Step 3: Cross multiply
    134,772.38x = 185,982.60 × 74,341.70
  4. Step 4: Simplify right side
    134,772.38x = 13,826,262,654.42
  5. Step 5: Solve for x
    x = 13,826,262,654.42/134,772.38
  6. Step 6: Final answer
    x = 102,589.73

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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.