Home / 109,738.10-164,607.15-108,571.70

Finding the Fourth Proportional to 109,738.10, 164,607.15 and 108,571.70

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Solution

The fourth proportional to 109,738.10, 164,607.15 and 108,571.70 is: 162,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,738.10 : 164,607.15 = 108,571.70 : x
  2. Step 2: Convert to fraction form
    109,738.10/164,607.15 = 108,571.70/x
  3. Step 3: Cross multiply
    109,738.10x = 164,607.15 × 108,571.70
  4. Step 4: Simplify right side
    109,738.10x = 17,871,678,107.66
  5. Step 5: Solve for x
    x = 17,871,678,107.66/109,738.10
  6. Step 6: Final answer
    x = 162,857.55

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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.