Home / 124,765.75-172,176.51-71,050.78

Finding the Fourth Proportional to 124,765.75, 172,176.51 and 71,050.78

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Solution

The fourth proportional to 124,765.75, 172,176.51 and 71,050.78 is: 98,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.75 : 172,176.51 = 71,050.78 : x
  2. Step 2: Convert to fraction form
    124,765.75/172,176.51 = 71,050.78/x
  3. Step 3: Cross multiply
    124,765.75x = 172,176.51 × 71,050.78
  4. Step 4: Simplify right side
    124,765.75x = 12,233,275,333.18
  5. Step 5: Solve for x
    x = 12,233,275,333.18/124,765.75
  6. Step 6: Final answer
    x = 98,049.95

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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.