Home / 126,223.74-189,472.10-112,273.11

Finding the Fourth Proportional to 126,223.74, 189,472.10 and 112,273.11

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Solution

The fourth proportional to 126,223.74, 189,472.10 and 112,273.11 is: 168,531.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,223.74 : 189,472.10 = 112,273.11 : x
  2. Step 2: Convert to fraction form
    126,223.74/189,472.10 = 112,273.11/x
  3. Step 3: Cross multiply
    126,223.74x = 189,472.10 × 112,273.11
  4. Step 4: Simplify right side
    126,223.74x = 21,272,621,363.87
  5. Step 5: Solve for x
    x = 21,272,621,363.87/126,223.74
  6. Step 6: Final answer
    x = 168,531.07

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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.