Home / 107,639.57-148,540.07-59,891.90

Finding the Fourth Proportional to 107,639.57, 148,540.07 and 59,891.90

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Solution

The fourth proportional to 107,639.57, 148,540.07 and 59,891.90 is: 82,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,639.57 : 148,540.07 = 59,891.90 : x
  2. Step 2: Convert to fraction form
    107,639.57/148,540.07 = 59,891.90/x
  3. Step 3: Cross multiply
    107,639.57x = 148,540.07 × 59,891.90
  4. Step 4: Simplify right side
    107,639.57x = 8,896,345,976.27
  5. Step 5: Solve for x
    x = 8,896,345,976.27/107,639.57
  6. Step 6: Final answer
    x = 82,649.40

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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.