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Finding the Fourth Proportional to 107,169.15, 160,720.89 and 74,101.71

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Solution

The fourth proportional to 107,169.15, 160,720.89 and 74,101.71 is: 111,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,169.15 : 160,720.89 = 74,101.71 : x
  2. Step 2: Convert to fraction form
    107,169.15/160,720.89 = 74,101.71/x
  3. Step 3: Cross multiply
    107,169.15x = 160,720.89 × 74,101.71
  4. Step 4: Simplify right side
    107,169.15x = 11,909,692,781.72
  5. Step 5: Solve for x
    x = 11,909,692,781.72/107,169.15
  6. Step 6: Final answer
    x = 111,129.86

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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.