Home / 117,132.27-161,555.18-76,305.39

Finding the Fourth Proportional to 117,132.27, 161,555.18 and 76,305.39

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Solution

The fourth proportional to 117,132.27, 161,555.18 and 76,305.39 is: 105,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,132.27 : 161,555.18 = 76,305.39 : x
  2. Step 2: Convert to fraction form
    117,132.27/161,555.18 = 76,305.39/x
  3. Step 3: Cross multiply
    117,132.27x = 161,555.18 × 76,305.39
  4. Step 4: Simplify right side
    117,132.27x = 12,327,530,634.89
  5. Step 5: Solve for x
    x = 12,327,530,634.89/117,132.27
  6. Step 6: Final answer
    x = 105,244.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.