Home / 261,320.73-391,944.19-83,804.68

Finding the Fourth Proportional to 261,320.73, 391,944.19 and 83,804.68

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Solution

The fourth proportional to 261,320.73, 391,944.19 and 83,804.68 is: 125,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,320.73 : 391,944.19 = 83,804.68 : x
  2. Step 2: Convert to fraction form
    261,320.73/391,944.19 = 83,804.68/x
  3. Step 3: Cross multiply
    261,320.73x = 391,944.19 × 83,804.68
  4. Step 4: Simplify right side
    261,320.73x = 32,846,755,889.38
  5. Step 5: Solve for x
    x = 32,846,755,889.38/261,320.73
  6. Step 6: Final answer
    x = 125,695.18

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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.