Home / 107,661.24-148,418.52-75,731.04

Finding the Fourth Proportional to 107,661.24, 148,418.52 and 75,731.04

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Solution

The fourth proportional to 107,661.24, 148,418.52 and 75,731.04 is: 104,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,661.24 : 148,418.52 = 75,731.04 : x
  2. Step 2: Convert to fraction form
    107,661.24/148,418.52 = 75,731.04/x
  3. Step 3: Cross multiply
    107,661.24x = 148,418.52 × 75,731.04
  4. Step 4: Simplify right side
    107,661.24x = 11,239,888,874.86
  5. Step 5: Solve for x
    x = 11,239,888,874.86/107,661.24
  6. Step 6: Final answer
    x = 104,400.51

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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.