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Finding the Fourth Proportional to 111,612, 167,275.62 and 52,317.03

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Solution

The fourth proportional to 111,612, 167,275.62 and 52,317.03 is: 78,408.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,612 : 167,275.62 = 52,317.03 : x
  2. Step 2: Convert to fraction form
    111,612/167,275.62 = 52,317.03/x
  3. Step 3: Cross multiply
    111,612x = 167,275.62 × 52,317.03
  4. Step 4: Simplify right side
    111,612x = 8,751,363,629.81
  5. Step 5: Solve for x
    x = 8,751,363,629.81/111,612
  6. Step 6: Final answer
    x = 78,408.81

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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.