Home / 132,388.25-182,570.05-87,104.66

Finding the Fourth Proportional to 132,388.25, 182,570.05 and 87,104.66

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Solution

The fourth proportional to 132,388.25, 182,570.05 and 87,104.66 is: 120,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,388.25 : 182,570.05 = 87,104.66 : x
  2. Step 2: Convert to fraction form
    132,388.25/182,570.05 = 87,104.66/x
  3. Step 3: Cross multiply
    132,388.25x = 182,570.05 × 87,104.66
  4. Step 4: Simplify right side
    132,388.25x = 15,902,702,131.43
  5. Step 5: Solve for x
    x = 15,902,702,131.43/132,388.25
  6. Step 6: Final answer
    x = 120,121.70

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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.