Home / 149,068.38-205,781.55-98,107.88

Finding the Fourth Proportional to 149,068.38, 205,781.55 and 98,107.88

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Solution

The fourth proportional to 149,068.38, 205,781.55 and 98,107.88 is: 135,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,068.38 : 205,781.55 = 98,107.88 : x
  2. Step 2: Convert to fraction form
    149,068.38/205,781.55 = 98,107.88/x
  3. Step 3: Cross multiply
    149,068.38x = 205,781.55 × 98,107.88
  4. Step 4: Simplify right side
    149,068.38x = 20,188,790,216.80
  5. Step 5: Solve for x
    x = 20,188,790,216.80/149,068.38
  6. Step 6: Final answer
    x = 135,433.08

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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.