Home / 138,734.58-191,453.94-75,072.42

Finding the Fourth Proportional to 138,734.58, 191,453.94 and 75,072.42

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Solution

The fourth proportional to 138,734.58, 191,453.94 and 75,072.42 is: 103,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,734.58 : 191,453.94 = 75,072.42 : x
  2. Step 2: Convert to fraction form
    138,734.58/191,453.94 = 75,072.42/x
  3. Step 3: Cross multiply
    138,734.58x = 191,453.94 × 75,072.42
  4. Step 4: Simplify right side
    138,734.58x = 14,372,910,594.33
  5. Step 5: Solve for x
    x = 14,372,910,594.33/138,734.58
  6. Step 6: Final answer
    x = 103,600.06

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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.