Home / 125,243.03-172,828.96-71,517.56

Finding the Fourth Proportional to 125,243.03, 172,828.96 and 71,517.56

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Solution

The fourth proportional to 125,243.03, 172,828.96 and 71,517.56 is: 98,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,243.03 : 172,828.96 = 71,517.56 : x
  2. Step 2: Convert to fraction form
    125,243.03/172,828.96 = 71,517.56/x
  3. Step 3: Cross multiply
    125,243.03x = 172,828.96 × 71,517.56
  4. Step 4: Simplify right side
    125,243.03x = 12,360,304,473.60
  5. Step 5: Solve for x
    x = 12,360,304,473.60/125,243.03
  6. Step 6: Final answer
    x = 98,690.56

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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.