Home / 107,518.11-161,360.60-74,469.71

Finding the Fourth Proportional to 107,518.11, 161,360.60 and 74,469.71

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Solution

The fourth proportional to 107,518.11, 161,360.60 and 74,469.71 is: 111,762.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,518.11 : 161,360.60 = 74,469.71 : x
  2. Step 2: Convert to fraction form
    107,518.11/161,360.60 = 74,469.71/x
  3. Step 3: Cross multiply
    107,518.11x = 161,360.60 × 74,469.71
  4. Step 4: Simplify right side
    107,518.11x = 12,016,475,908.27
  5. Step 5: Solve for x
    x = 12,016,475,908.27/107,518.11
  6. Step 6: Final answer
    x = 111,762.34

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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.