Home / 104,982.78-144,876.69-67,278.90

Finding the Fourth Proportional to 104,982.78, 144,876.69 and 67,278.90

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Solution

The fourth proportional to 104,982.78, 144,876.69 and 67,278.90 is: 92,845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,982.78 : 144,876.69 = 67,278.90 : x
  2. Step 2: Convert to fraction form
    104,982.78/144,876.69 = 67,278.90/x
  3. Step 3: Cross multiply
    104,982.78x = 144,876.69 × 67,278.90
  4. Step 4: Simplify right side
    104,982.78x = 9,747,144,338.84
  5. Step 5: Solve for x
    x = 9,747,144,338.84/104,982.78
  6. Step 6: Final answer
    x = 92,845.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.