Home / 165,111.60-247,375.80-102,709.20

Finding the Fourth Proportional to 165,111.60, 247,375.80 and 102,709.20

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Solution

The fourth proportional to 165,111.60, 247,375.80 and 102,709.20 is: 153,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,111.60 : 247,375.80 = 102,709.20 : x
  2. Step 2: Convert to fraction form
    165,111.60/247,375.80 = 102,709.20/x
  3. Step 3: Cross multiply
    165,111.60x = 247,375.80 × 102,709.20
  4. Step 4: Simplify right side
    165,111.60x = 25,407,770,517.36
  5. Step 5: Solve for x
    x = 25,407,770,517.36/165,111.60
  6. Step 6: Final answer
    x = 153,882.41

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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.