Home / 126,142.56-188,971.92-70,777.44

Finding the Fourth Proportional to 126,142.56, 188,971.92 and 70,777.44

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Solution

The fourth proportional to 126,142.56, 188,971.92 and 70,777.44 is: 106,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,142.56 : 188,971.92 = 70,777.44 : x
  2. Step 2: Convert to fraction form
    126,142.56/188,971.92 = 70,777.44/x
  3. Step 3: Cross multiply
    126,142.56x = 188,971.92 × 70,777.44
  4. Step 4: Simplify right side
    126,142.56x = 13,374,948,729.48
  5. Step 5: Solve for x
    x = 13,374,948,729.48/126,142.56
  6. Step 6: Final answer
    x = 106,030.42

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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.