Home / 107,707.38-161,558.76-28,821.60

Finding the Fourth Proportional to 107,707.38, 161,558.76 and 28,821.60

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Solution

The fourth proportional to 107,707.38, 161,558.76 and 28,821.60 is: 43,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,707.38 : 161,558.76 = 28,821.60 : x
  2. Step 2: Convert to fraction form
    107,707.38/161,558.76 = 28,821.60/x
  3. Step 3: Cross multiply
    107,707.38x = 161,558.76 × 28,821.60
  4. Step 4: Simplify right side
    107,707.38x = 4,656,381,957.22
  5. Step 5: Solve for x
    x = 4,656,381,957.22/107,707.38
  6. Step 6: Final answer
    x = 43,231.78

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1.5x scale

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.