Home / 107,661.47-148,418.86-75,731.27

Finding the Fourth Proportional to 107,661.47, 148,418.86 and 75,731.27

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Solution

The fourth proportional to 107,661.47, 148,418.86 and 75,731.27 is: 104,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,661.47 : 148,418.86 = 75,731.27 : x
  2. Step 2: Convert to fraction form
    107,661.47/148,418.86 = 75,731.27/x
  3. Step 3: Cross multiply
    107,661.47x = 148,418.86 × 75,731.27
  4. Step 4: Simplify right side
    107,661.47x = 11,239,948,759.75
  5. Step 5: Solve for x
    x = 11,239,948,759.75/107,661.47
  6. Step 6: Final answer
    x = 104,400.85

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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.