Home / 124,806.28-172,232.76-68,217.66

Finding the Fourth Proportional to 124,806.28, 172,232.76 and 68,217.66

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Solution

The fourth proportional to 124,806.28, 172,232.76 and 68,217.66 is: 94,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,806.28 : 172,232.76 = 68,217.66 : x
  2. Step 2: Convert to fraction form
    124,806.28/172,232.76 = 68,217.66/x
  3. Step 3: Cross multiply
    124,806.28x = 172,232.76 × 68,217.66
  4. Step 4: Simplify right side
    124,806.28x = 11,749,315,862.54
  5. Step 5: Solve for x
    x = 11,749,315,862.54/124,806.28
  6. Step 6: Final answer
    x = 94,140.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.