Home / 138,913.18-191,701.10-75,250.94

Finding the Fourth Proportional to 138,913.18, 191,701.10 and 75,250.94

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Solution

The fourth proportional to 138,913.18, 191,701.10 and 75,250.94 is: 103,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,913.18 : 191,701.10 = 75,250.94 : x
  2. Step 2: Convert to fraction form
    138,913.18/191,701.10 = 75,250.94/x
  3. Step 3: Cross multiply
    138,913.18x = 191,701.10 × 75,250.94
  4. Step 4: Simplify right side
    138,913.18x = 14,425,687,974.03
  5. Step 5: Solve for x
    x = 14,425,687,974.03/138,913.18
  6. Step 6: Final answer
    x = 103,846.79

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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.