Home / 110,720.20-166,517.70-99,347.80

Finding the Fourth Proportional to 110,720.20, 166,517.70 and 99,347.80

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Solution

The fourth proportional to 110,720.20, 166,517.70 and 99,347.80 is: 149,414.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,720.20 : 166,517.70 = 99,347.80 : x
  2. Step 2: Convert to fraction form
    110,720.20/166,517.70 = 99,347.80/x
  3. Step 3: Cross multiply
    110,720.20x = 166,517.70 × 99,347.80
  4. Step 4: Simplify right side
    110,720.20x = 16,543,167,156.06
  5. Step 5: Solve for x
    x = 16,543,167,156.06/110,720.20
  6. Step 6: Final answer
    x = 149,414.17

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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.