Home / 126,972.30-190,396.89-38,209.26

Finding the Fourth Proportional to 126,972.30, 190,396.89 and 38,209.26

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Solution

The fourth proportional to 126,972.30, 190,396.89 and 38,209.26 is: 57,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,972.30 : 190,396.89 = 38,209.26 : x
  2. Step 2: Convert to fraction form
    126,972.30/190,396.89 = 38,209.26/x
  3. Step 3: Cross multiply
    126,972.30x = 190,396.89 × 38,209.26
  4. Step 4: Simplify right side
    126,972.30x = 7,274,924,273.20
  5. Step 5: Solve for x
    x = 7,274,924,273.20/126,972.30
  6. Step 6: Final answer
    x = 57,295.36

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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.