Home / 165,054.60-247,581.90-76,481.10

Finding the Fourth Proportional to 165,054.60, 247,581.90 and 76,481.10

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Solution

The fourth proportional to 165,054.60, 247,581.90 and 76,481.10 is: 114,721.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,054.60 : 247,581.90 = 76,481.10 : x
  2. Step 2: Convert to fraction form
    165,054.60/247,581.90 = 76,481.10/x
  3. Step 3: Cross multiply
    165,054.60x = 247,581.90 × 76,481.10
  4. Step 4: Simplify right side
    165,054.60x = 18,935,336,052.09
  5. Step 5: Solve for x
    x = 18,935,336,052.09/165,054.60
  6. Step 6: Final answer
    x = 114,721.65

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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.