Home / 141,388.97-195,120.50-76,862.54

Finding the Fourth Proportional to 141,388.97, 195,120.50 and 76,862.54

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Solution

The fourth proportional to 141,388.97, 195,120.50 and 76,862.54 is: 106,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,388.97 : 195,120.50 = 76,862.54 : x
  2. Step 2: Convert to fraction form
    141,388.97/195,120.50 = 76,862.54/x
  3. Step 3: Cross multiply
    141,388.97x = 195,120.50 × 76,862.54
  4. Step 4: Simplify right side
    141,388.97x = 14,997,455,876.15
  5. Step 5: Solve for x
    x = 14,997,455,876.15/141,388.97
  6. Step 6: Final answer
    x = 106,072.32

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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.