Home / 107,991.11-149,009.27-62,658.70

Finding the Fourth Proportional to 107,991.11, 149,009.27 and 62,658.70

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Solution

The fourth proportional to 107,991.11, 149,009.27 and 62,658.70 is: 86,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,991.11 : 149,009.27 = 62,658.70 : x
  2. Step 2: Convert to fraction form
    107,991.11/149,009.27 = 62,658.70/x
  3. Step 3: Cross multiply
    107,991.11x = 149,009.27 × 62,658.70
  4. Step 4: Simplify right side
    107,991.11x = 9,336,726,401.10
  5. Step 5: Solve for x
    x = 9,336,726,401.10/107,991.11
  6. Step 6: Final answer
    x = 86,458.29

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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.