Home / 74,158.18-111,236.33-17,998.75

Finding the Fourth Proportional to 74,158.18, 111,236.33 and 17,998.75

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Solution

The fourth proportional to 74,158.18, 111,236.33 and 17,998.75 is: 26,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,158.18 : 111,236.33 = 17,998.75 : x
  2. Step 2: Convert to fraction form
    74,158.18/111,236.33 = 17,998.75/x
  3. Step 3: Cross multiply
    74,158.18x = 111,236.33 × 17,998.75
  4. Step 4: Simplify right side
    74,158.18x = 2,002,114,894.59
  5. Step 5: Solve for x
    x = 2,002,114,894.59/74,158.18
  6. Step 6: Final answer
    x = 26,997.90

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Double scale
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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.