Home / 106,067.20-146,243.20-77,761.28

Finding the Fourth Proportional to 106,067.20, 146,243.20 and 77,761.28

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Solution

The fourth proportional to 106,067.20, 146,243.20 and 77,761.28 is: 107,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,067.20 : 146,243.20 = 77,761.28 : x
  2. Step 2: Convert to fraction form
    106,067.20/146,243.20 = 77,761.28/x
  3. Step 3: Cross multiply
    106,067.20x = 146,243.20 × 77,761.28
  4. Step 4: Simplify right side
    106,067.20x = 11,372,058,423.30
  5. Step 5: Solve for x
    x = 11,372,058,423.30/106,067.20
  6. Step 6: Final answer
    x = 107,215.60

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1.5x scale

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.