Home / 138,913.42-191,701.44-75,251.17

Finding the Fourth Proportional to 138,913.42, 191,701.44 and 75,251.17

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Solution

The fourth proportional to 138,913.42, 191,701.44 and 75,251.17 is: 103,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,913.42 : 191,701.44 = 75,251.17 : x
  2. Step 2: Convert to fraction form
    138,913.42/191,701.44 = 75,251.17/x
  3. Step 3: Cross multiply
    138,913.42x = 191,701.44 × 75,251.17
  4. Step 4: Simplify right side
    138,913.42x = 14,425,757,650.68
  5. Step 5: Solve for x
    x = 14,425,757,650.68/138,913.42
  6. Step 6: Final answer
    x = 103,847.11

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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.