Home / 106,791.20-147,370.02-76,220.58

Finding the Fourth Proportional to 106,791.20, 147,370.02 and 76,220.58

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Solution

The fourth proportional to 106,791.20, 147,370.02 and 76,220.58 is: 105,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,791.20 : 147,370.02 = 76,220.58 : x
  2. Step 2: Convert to fraction form
    106,791.20/147,370.02 = 76,220.58/x
  3. Step 3: Cross multiply
    106,791.20x = 147,370.02 × 76,220.58
  4. Step 4: Simplify right side
    106,791.20x = 11,232,629,053.26
  5. Step 5: Solve for x
    x = 11,232,629,053.26/106,791.20
  6. Step 6: Final answer
    x = 105,183.10

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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.