Home / 106,987.10-147,642.17-59,240.43

Finding the Fourth Proportional to 106,987.10, 147,642.17 and 59,240.43

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Solution

The fourth proportional to 106,987.10, 147,642.17 and 59,240.43 is: 81,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,987.10 : 147,642.17 = 59,240.43 : x
  2. Step 2: Convert to fraction form
    106,987.10/147,642.17 = 59,240.43/x
  3. Step 3: Cross multiply
    106,987.10x = 147,642.17 × 59,240.43
  4. Step 4: Simplify right side
    106,987.10x = 8,746,385,340.73
  5. Step 5: Solve for x
    x = 8,746,385,340.73/106,987.10
  6. Step 6: Final answer
    x = 81,751.78

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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.