Home / 109,660.13-164,115.94-91,910.82

Finding the Fourth Proportional to 109,660.13, 164,115.94 and 91,910.82

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Solution

The fourth proportional to 109,660.13, 164,115.94 and 91,910.82 is: 137,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.13 : 164,115.94 = 91,910.82 : x
  2. Step 2: Convert to fraction form
    109,660.13/164,115.94 = 91,910.82/x
  3. Step 3: Cross multiply
    109,660.13x = 164,115.94 × 91,910.82
  4. Step 4: Simplify right side
    109,660.13x = 15,084,031,350.79
  5. Step 5: Solve for x
    x = 15,084,031,350.79/109,660.13
  6. Step 6: Final answer
    x = 137,552.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.