Home / 126,549.24-189,876.25-55,435.13

Finding the Fourth Proportional to 126,549.24, 189,876.25 and 55,435.13

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Solution

The fourth proportional to 126,549.24, 189,876.25 and 55,435.13 is: 83,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,549.24 : 189,876.25 = 55,435.13 : x
  2. Step 2: Convert to fraction form
    126,549.24/189,876.25 = 55,435.13/x
  3. Step 3: Cross multiply
    126,549.24x = 189,876.25 × 55,435.13
  4. Step 4: Simplify right side
    126,549.24x = 10,525,815,502.67
  5. Step 5: Solve for x
    x = 10,525,815,502.67/126,549.24
  6. Step 6: Final answer
    x = 83,175.65

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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.