Home / 136,080.60-204,120.98-74,144.76

Finding the Fourth Proportional to 136,080.60, 204,120.98 and 74,144.76

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Solution

The fourth proportional to 136,080.60, 204,120.98 and 74,144.76 is: 111,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,080.60 : 204,120.98 = 74,144.76 : x
  2. Step 2: Convert to fraction form
    136,080.60/204,120.98 = 74,144.76/x
  3. Step 3: Cross multiply
    136,080.60x = 204,120.98 × 74,144.76
  4. Step 4: Simplify right side
    136,080.60x = 15,134,501,073.06
  5. Step 5: Solve for x
    x = 15,134,501,073.06/136,080.60
  6. Step 6: Final answer
    x = 111,217.18

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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.