Home / 104,983.78-144,878.07-67,279.90

Finding the Fourth Proportional to 104,983.78, 144,878.07 and 67,279.90

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Solution

The fourth proportional to 104,983.78, 144,878.07 and 67,279.90 is: 92,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,983.78 : 144,878.07 = 67,279.90 : x
  2. Step 2: Convert to fraction form
    104,983.78/144,878.07 = 67,279.90/x
  3. Step 3: Cross multiply
    104,983.78x = 144,878.07 × 67,279.90
  4. Step 4: Simplify right side
    104,983.78x = 9,747,382,061.79
  5. Step 5: Solve for x
    x = 9,747,382,061.79/104,983.78
  6. Step 6: Final answer
    x = 92,846.55

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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.