Home / 111,519.10-167,223.30-40,438.90

Finding the Fourth Proportional to 111,519.10, 167,223.30 and 40,438.90

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Solution

The fourth proportional to 111,519.10, 167,223.30 and 40,438.90 is: 60,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,519.10 : 167,223.30 = 40,438.90 : x
  2. Step 2: Convert to fraction form
    111,519.10/167,223.30 = 40,438.90/x
  3. Step 3: Cross multiply
    111,519.10x = 167,223.30 × 40,438.90
  4. Step 4: Simplify right side
    111,519.10x = 6,762,326,306.37
  5. Step 5: Solve for x
    x = 6,762,326,306.37/111,519.10
  6. Step 6: Final answer
    x = 60,638.28

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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.