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Finding the Fourth Proportional to 104,285.66, 155,086.86 and 100,964.16

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Solution

The fourth proportional to 104,285.66, 155,086.86 and 100,964.16 is: 150,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,285.66 : 155,086.86 = 100,964.16 : x
  2. Step 2: Convert to fraction form
    104,285.66/155,086.86 = 100,964.16/x
  3. Step 3: Cross multiply
    104,285.66x = 155,086.86 × 100,964.16
  4. Step 4: Simplify right side
    104,285.66x = 15,658,214,546.94
  5. Step 5: Solve for x
    x = 15,658,214,546.94/104,285.66
  6. Step 6: Final answer
    x = 150,147.35

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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.