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Finding the Fourth Proportional to 104,285.16, 155,086.11 and 100,963.65

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Solution

The fourth proportional to 104,285.16, 155,086.11 and 100,963.65 is: 150,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,285.16 : 155,086.11 = 100,963.65 : x
  2. Step 2: Convert to fraction form
    104,285.16/155,086.11 = 100,963.65/x
  3. Step 3: Cross multiply
    104,285.16x = 155,086.11 × 100,963.65
  4. Step 4: Simplify right side
    104,285.16x = 15,658,059,729.90
  5. Step 5: Solve for x
    x = 15,658,059,729.90/104,285.16
  6. Step 6: Final answer
    x = 150,146.58

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1.5x scale

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.