Home / 91,971.96-137,884.62-84,591.24

Finding the Fourth Proportional to 91,971.96, 137,884.62 and 84,591.24

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Solution

The fourth proportional to 91,971.96, 137,884.62 and 84,591.24 is: 126,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,971.96 : 137,884.62 = 84,591.24 : x
  2. Step 2: Convert to fraction form
    91,971.96/137,884.62 = 84,591.24/x
  3. Step 3: Cross multiply
    91,971.96x = 137,884.62 × 84,591.24
  4. Step 4: Simplify right side
    91,971.96x = 11,663,830,982.73
  5. Step 5: Solve for x
    x = 11,663,830,982.73/91,971.96
  6. Step 6: Final answer
    x = 126,819.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.