Home / 127,751.61-176,297.22-74,067.78

Finding the Fourth Proportional to 127,751.61, 176,297.22 and 74,067.78

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Solution

The fourth proportional to 127,751.61, 176,297.22 and 74,067.78 is: 102,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,751.61 : 176,297.22 = 74,067.78 : x
  2. Step 2: Convert to fraction form
    127,751.61/176,297.22 = 74,067.78/x
  3. Step 3: Cross multiply
    127,751.61x = 176,297.22 × 74,067.78
  4. Step 4: Simplify right side
    127,751.61x = 13,057,943,705.57
  5. Step 5: Solve for x
    x = 13,057,943,705.57/127,751.61
  6. Step 6: Final answer
    x = 102,213.54

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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.