Home / 261,140.03-391,719.33-83,623.97

Finding the Fourth Proportional to 261,140.03, 391,719.33 and 83,623.97

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Solution

The fourth proportional to 261,140.03, 391,719.33 and 83,623.97 is: 125,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,140.03 : 391,719.33 = 83,623.97 : x
  2. Step 2: Convert to fraction form
    261,140.03/391,719.33 = 83,623.97/x
  3. Step 3: Cross multiply
    261,140.03x = 391,719.33 × 83,623.97
  4. Step 4: Simplify right side
    261,140.03x = 32,757,125,500.34
  5. Step 5: Solve for x
    x = 32,757,125,500.34/261,140.03
  6. Step 6: Final answer
    x = 125,438.93

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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.