Home / 138,913.14-191,699.96-75,251.20

Finding the Fourth Proportional to 138,913.14, 191,699.96 and 75,251.20

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Solution

The fourth proportional to 138,913.14, 191,699.96 and 75,251.20 is: 103,846.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,913.14 : 191,699.96 = 75,251.20 : x
  2. Step 2: Convert to fraction form
    138,913.14/191,699.96 = 75,251.20/x
  3. Step 3: Cross multiply
    138,913.14x = 191,699.96 × 75,251.20
  4. Step 4: Simplify right side
    138,913.14x = 14,425,652,029.95
  5. Step 5: Solve for x
    x = 14,425,652,029.95/138,913.14
  6. Step 6: Final answer
    x = 103,846.56

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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.