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Finding the Fourth Proportional to 135,754.70, 187,338.62 and 75,324.05

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Solution

The fourth proportional to 135,754.70, 187,338.62 and 75,324.05 is: 103,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,754.70 : 187,338.62 = 75,324.05 : x
  2. Step 2: Convert to fraction form
    135,754.70/187,338.62 = 75,324.05/x
  3. Step 3: Cross multiply
    135,754.70x = 187,338.62 × 75,324.05
  4. Step 4: Simplify right side
    135,754.70x = 14,111,102,266.50
  5. Step 5: Solve for x
    x = 14,111,102,266.50/135,754.70
  6. Step 6: Final answer
    x = 103,945.59

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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.