Home / 156,338.38-233,375.52-137,421.64

Finding the Fourth Proportional to 156,338.38, 233,375.52 and 137,421.64

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Solution

The fourth proportional to 156,338.38, 233,375.52 and 137,421.64 is: 205,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,338.38 : 233,375.52 = 137,421.64 : x
  2. Step 2: Convert to fraction form
    156,338.38/233,375.52 = 137,421.64/x
  3. Step 3: Cross multiply
    156,338.38x = 233,375.52 × 137,421.64
  4. Step 4: Simplify right side
    156,338.38x = 32,070,846,694.25
  5. Step 5: Solve for x
    x = 32,070,846,694.25/156,338.38
  6. Step 6: Final answer
    x = 205,137.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.