Home / 109,942.20-164,816.10-65,521.80

Finding the Fourth Proportional to 109,942.20, 164,816.10 and 65,521.80

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Solution

The fourth proportional to 109,942.20, 164,816.10 and 65,521.80 is: 98,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,942.20 : 164,816.10 = 65,521.80 : x
  2. Step 2: Convert to fraction form
    109,942.20/164,816.10 = 65,521.80/x
  3. Step 3: Cross multiply
    109,942.20x = 164,816.10 × 65,521.80
  4. Step 4: Simplify right side
    109,942.20x = 10,799,047,540.98
  5. Step 5: Solve for x
    x = 10,799,047,540.98/109,942.20
  6. Step 6: Final answer
    x = 98,224.77

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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.