Home / 133,438.95-198,815.15-131,514.39

Finding the Fourth Proportional to 133,438.95, 198,815.15 and 131,514.39

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Solution

The fourth proportional to 133,438.95, 198,815.15 and 131,514.39 is: 195,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,438.95 : 198,815.15 = 131,514.39 : x
  2. Step 2: Convert to fraction form
    133,438.95/198,815.15 = 131,514.39/x
  3. Step 3: Cross multiply
    133,438.95x = 198,815.15 × 131,514.39
  4. Step 4: Simplify right side
    133,438.95x = 26,147,053,175.01
  5. Step 5: Solve for x
    x = 26,147,053,175.01/133,438.95
  6. Step 6: Final answer
    x = 195,947.68

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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.