Home / 107,951.20-161,708.10-61,149.40

Finding the Fourth Proportional to 107,951.20, 161,708.10 and 61,149.40

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Solution

The fourth proportional to 107,951.20, 161,708.10 and 61,149.40 is: 91,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,951.20 : 161,708.10 = 61,149.40 : x
  2. Step 2: Convert to fraction form
    107,951.20/161,708.10 = 61,149.40/x
  3. Step 3: Cross multiply
    107,951.20x = 161,708.10 × 61,149.40
  4. Step 4: Simplify right side
    107,951.20x = 9,888,353,290.14
  5. Step 5: Solve for x
    x = 9,888,353,290.14/107,951.20
  6. Step 6: Final answer
    x = 91,600.22

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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.