Home / 81,320.29-122,053.33-68,076.18

Finding the Fourth Proportional to 81,320.29, 122,053.33 and 68,076.18

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Solution

The fourth proportional to 81,320.29, 122,053.33 and 68,076.18 is: 102,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,320.29 : 122,053.33 = 68,076.18 : x
  2. Step 2: Convert to fraction form
    81,320.29/122,053.33 = 68,076.18/x
  3. Step 3: Cross multiply
    81,320.29x = 122,053.33 × 68,076.18
  4. Step 4: Simplify right side
    81,320.29x = 8,308,924,292.49
  5. Step 5: Solve for x
    x = 8,308,924,292.49/81,320.29
  6. Step 6: Final answer
    x = 102,175.29

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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.