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Finding the Fourth Proportional to 72,134.38, 108,202.38 and 22,214.08

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Solution

The fourth proportional to 72,134.38, 108,202.38 and 22,214.08 is: 33,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,134.38 : 108,202.38 = 22,214.08 : x
  2. Step 2: Convert to fraction form
    72,134.38/108,202.38 = 22,214.08/x
  3. Step 3: Cross multiply
    72,134.38x = 108,202.38 × 22,214.08
  4. Step 4: Simplify right side
    72,134.38x = 2,403,616,325.51
  5. Step 5: Solve for x
    x = 2,403,616,325.51/72,134.38
  6. Step 6: Final answer
    x = 33,321.37

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1.5x scale

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.