Home / 149,170.80-205,750.92-98,167.28

Finding the Fourth Proportional to 149,170.80, 205,750.92 and 98,167.28

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Solution

The fourth proportional to 149,170.80, 205,750.92 and 98,167.28 is: 135,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,170.80 : 205,750.92 = 98,167.28 : x
  2. Step 2: Convert to fraction form
    149,170.80/205,750.92 = 98,167.28/x
  3. Step 3: Cross multiply
    149,170.80x = 205,750.92 × 98,167.28
  4. Step 4: Simplify right side
    149,170.80x = 20,198,008,173.90
  5. Step 5: Solve for x
    x = 20,198,008,173.90/149,170.80
  6. Step 6: Final answer
    x = 135,401.89

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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.