Home / 103,961.85-155,942.78-61,862.10

Finding the Fourth Proportional to 103,961.85, 155,942.78 and 61,862.10

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Solution

The fourth proportional to 103,961.85, 155,942.78 and 61,862.10 is: 92,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,961.85 : 155,942.78 = 61,862.10 : x
  2. Step 2: Convert to fraction form
    103,961.85/155,942.78 = 61,862.10/x
  3. Step 3: Cross multiply
    103,961.85x = 155,942.78 × 61,862.10
  4. Step 4: Simplify right side
    103,961.85x = 9,646,947,541.33
  5. Step 5: Solve for x
    x = 9,646,947,541.33/103,961.85
  6. Step 6: Final answer
    x = 92,793.15

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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.