Home / 106,661.38-147,180.09-58,911.88

Finding the Fourth Proportional to 106,661.38, 147,180.09 and 58,911.88

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Solution

The fourth proportional to 106,661.38, 147,180.09 and 58,911.88 is: 81,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,661.38 : 147,180.09 = 58,911.88 : x
  2. Step 2: Convert to fraction form
    106,661.38/147,180.09 = 58,911.88/x
  3. Step 3: Cross multiply
    106,661.38x = 147,180.09 × 58,911.88
  4. Step 4: Simplify right side
    106,661.38x = 8,670,655,800.47
  5. Step 5: Solve for x
    x = 8,670,655,800.47/106,661.38
  6. Step 6: Final answer
    x = 81,291.43

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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.