Home / 103,166.10-155,099.07-82,371.78

Finding the Fourth Proportional to 103,166.10, 155,099.07 and 82,371.78

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Solution

The fourth proportional to 103,166.10, 155,099.07 and 82,371.78 is: 123,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,166.10 : 155,099.07 = 82,371.78 : x
  2. Step 2: Convert to fraction form
    103,166.10/155,099.07 = 82,371.78/x
  3. Step 3: Cross multiply
    103,166.10x = 155,099.07 × 82,371.78
  4. Step 4: Simplify right side
    103,166.10x = 12,775,786,472.24
  5. Step 5: Solve for x
    x = 12,775,786,472.24/103,166.10
  6. Step 6: Final answer
    x = 123,837.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.