Home / 111,485.10-166,968.45-76,233.90

Finding the Fourth Proportional to 111,485.10, 166,968.45 and 76,233.90

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Solution

The fourth proportional to 111,485.10, 166,968.45 and 76,233.90 is: 114,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,485.10 : 166,968.45 = 76,233.90 : x
  2. Step 2: Convert to fraction form
    111,485.10/166,968.45 = 76,233.90/x
  3. Step 3: Cross multiply
    111,485.10x = 166,968.45 × 76,233.90
  4. Step 4: Simplify right side
    111,485.10x = 12,728,656,120.46
  5. Step 5: Solve for x
    x = 12,728,656,120.46/111,485.10
  6. Step 6: Final answer
    x = 114,173.61

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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.