Home / 111,930.12-167,895-76,763.16

Finding the Fourth Proportional to 111,930.12, 167,895 and 76,763.16

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Solution

The fourth proportional to 111,930.12, 167,895 and 76,763.16 is: 115,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,930.12 : 167,895 = 76,763.16 : x
  2. Step 2: Convert to fraction form
    111,930.12/167,895 = 76,763.16/x
  3. Step 3: Cross multiply
    111,930.12x = 167,895 × 76,763.16
  4. Step 4: Simplify right side
    111,930.12x = 12,888,150,748.20
  5. Step 5: Solve for x
    x = 12,888,150,748.20/111,930.12
  6. Step 6: Final answer
    x = 115,144.62

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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.