Home / 126,156.24-189,020.14-76,131.22

Finding the Fourth Proportional to 126,156.24, 189,020.14 and 76,131.22

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Solution

The fourth proportional to 126,156.24, 189,020.14 and 76,131.22 is: 114,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,156.24 : 189,020.14 = 76,131.22 : x
  2. Step 2: Convert to fraction form
    126,156.24/189,020.14 = 76,131.22/x
  3. Step 3: Cross multiply
    126,156.24x = 189,020.14 × 76,131.22
  4. Step 4: Simplify right side
    126,156.24x = 14,390,332,727.34
  5. Step 5: Solve for x
    x = 14,390,332,727.34/126,156.24
  6. Step 6: Final answer
    x = 114,067.55

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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.