Home / 111,214.10-166,821.15-105,770.90

Finding the Fourth Proportional to 111,214.10, 166,821.15 and 105,770.90

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Solution

The fourth proportional to 111,214.10, 166,821.15 and 105,770.90 is: 158,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,214.10 : 166,821.15 = 105,770.90 : x
  2. Step 2: Convert to fraction form
    111,214.10/166,821.15 = 105,770.90/x
  3. Step 3: Cross multiply
    111,214.10x = 166,821.15 × 105,770.90
  4. Step 4: Simplify right side
    111,214.10x = 17,644,823,174.54
  5. Step 5: Solve for x
    x = 17,644,823,174.54/111,214.10
  6. Step 6: Final answer
    x = 158,656.35

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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.