Home / 165,012.31-247,478.81-76,180.49

Finding the Fourth Proportional to 165,012.31, 247,478.81 and 76,180.49

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Solution

The fourth proportional to 165,012.31, 247,478.81 and 76,180.49 is: 114,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,012.31 : 247,478.81 = 76,180.49 : x
  2. Step 2: Convert to fraction form
    165,012.31/247,478.81 = 76,180.49/x
  3. Step 3: Cross multiply
    165,012.31x = 247,478.81 × 76,180.49
  4. Step 4: Simplify right side
    165,012.31x = 18,853,057,010.42
  5. Step 5: Solve for x
    x = 18,853,057,010.42/165,012.31
  6. Step 6: Final answer
    x = 114,252.43

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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.