Home / 198,046.40-297,119.36-91,505.75

Finding the Fourth Proportional to 198,046.40, 297,119.36 and 91,505.75

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Solution

The fourth proportional to 198,046.40, 297,119.36 and 91,505.75 is: 137,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,046.40 : 297,119.36 = 91,505.75 : x
  2. Step 2: Convert to fraction form
    198,046.40/297,119.36 = 91,505.75/x
  3. Step 3: Cross multiply
    198,046.40x = 297,119.36 × 91,505.75
  4. Step 4: Simplify right side
    198,046.40x = 27,188,128,619.49
  5. Step 5: Solve for x
    x = 27,188,128,619.49/198,046.40
  6. Step 6: Final answer
    x = 137,281.61

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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.