Home / 165,233.60-247,504.80-91,275.20

Finding the Fourth Proportional to 165,233.60, 247,504.80 and 91,275.20

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Solution

The fourth proportional to 165,233.60, 247,504.80 and 91,275.20 is: 136,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,233.60 : 247,504.80 = 91,275.20 : x
  2. Step 2: Convert to fraction form
    165,233.60/247,504.80 = 91,275.20/x
  3. Step 3: Cross multiply
    165,233.60x = 247,504.80 × 91,275.20
  4. Step 4: Simplify right side
    165,233.60x = 22,591,050,120.96
  5. Step 5: Solve for x
    x = 22,591,050,120.96/165,233.60
  6. Step 6: Final answer
    x = 136,721.89

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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.