Home / 110,938.70-166,310.85-66,518.30

Finding the Fourth Proportional to 110,938.70, 166,310.85 and 66,518.30

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Solution

The fourth proportional to 110,938.70, 166,310.85 and 66,518.30 is: 99,719.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,938.70 : 166,310.85 = 66,518.30 : x
  2. Step 2: Convert to fraction form
    110,938.70/166,310.85 = 66,518.30/x
  3. Step 3: Cross multiply
    110,938.70x = 166,310.85 × 66,518.30
  4. Step 4: Simplify right side
    110,938.70x = 11,062,715,013.56
  5. Step 5: Solve for x
    x = 11,062,715,013.56/110,938.70
  6. Step 6: Final answer
    x = 99,719.17

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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.