Home / 261,510.12-391,927.98-126,542.49

Finding the Fourth Proportional to 261,510.12, 391,927.98 and 126,542.49

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Solution

The fourth proportional to 261,510.12, 391,927.98 and 126,542.49 is: 189,650.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,510.12 : 391,927.98 = 126,542.49 : x
  2. Step 2: Convert to fraction form
    261,510.12/391,927.98 = 126,542.49/x
  3. Step 3: Cross multiply
    261,510.12x = 391,927.98 × 126,542.49
  4. Step 4: Simplify right side
    261,510.12x = 49,595,541,494.67
  5. Step 5: Solve for x
    x = 49,595,541,494.67/261,510.12
  6. Step 6: Final answer
    x = 189,650.56

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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.