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Finding the Fourth Proportional to 135,959.33, 187,620.50 and 75,530.12

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Solution

The fourth proportional to 135,959.33, 187,620.50 and 75,530.12 is: 104,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,959.33 : 187,620.50 = 75,530.12 : x
  2. Step 2: Convert to fraction form
    135,959.33/187,620.50 = 75,530.12/x
  3. Step 3: Cross multiply
    135,959.33x = 187,620.50 × 75,530.12
  4. Step 4: Simplify right side
    135,959.33x = 14,170,998,879.46
  5. Step 5: Solve for x
    x = 14,170,998,879.46/135,959.33
  6. Step 6: Final answer
    x = 104,229.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.