Home / 104,285.25-155,086.31-100,963.80

Finding the Fourth Proportional to 104,285.25, 155,086.31 and 100,963.80

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Solution

The fourth proportional to 104,285.25, 155,086.31 and 100,963.80 is: 150,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,285.25 : 155,086.31 = 100,963.80 : x
  2. Step 2: Convert to fraction form
    104,285.25/155,086.31 = 100,963.80/x
  3. Step 3: Cross multiply
    104,285.25x = 155,086.31 × 100,963.80
  4. Step 4: Simplify right side
    104,285.25x = 15,658,103,437.99
  5. Step 5: Solve for x
    x = 15,658,103,437.99/104,285.25
  6. Step 6: Final answer
    x = 150,146.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.