Home / 110,943.20-166,317.60-66,522.80

Finding the Fourth Proportional to 110,943.20, 166,317.60 and 66,522.80

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Solution

The fourth proportional to 110,943.20, 166,317.60 and 66,522.80 is: 99,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,943.20 : 166,317.60 = 66,522.80 : x
  2. Step 2: Convert to fraction form
    110,943.20/166,317.60 = 66,522.80/x
  3. Step 3: Cross multiply
    110,943.20x = 166,317.60 × 66,522.80
  4. Step 4: Simplify right side
    110,943.20x = 11,063,912,441.28
  5. Step 5: Solve for x
    x = 11,063,912,441.28/110,943.20
  6. Step 6: Final answer
    x = 99,725.92

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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.