Home / 111,840.16-167,789.28-41,720

Finding the Fourth Proportional to 111,840.16, 167,789.28 and 41,720

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Solution

The fourth proportional to 111,840.16, 167,789.28 and 41,720 is: 62,590.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,840.16 : 167,789.28 = 41,720 : x
  2. Step 2: Convert to fraction form
    111,840.16/167,789.28 = 41,720/x
  3. Step 3: Cross multiply
    111,840.16x = 167,789.28 × 41,720
  4. Step 4: Simplify right side
    111,840.16x = 7,000,168,761.60
  5. Step 5: Solve for x
    x = 7,000,168,761.60/111,840.16
  6. Step 6: Final answer
    x = 62,590.83

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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.