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Finding the Fourth Proportional to 100,149.60, 150,300 and 68,484

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Solution

The fourth proportional to 100,149.60, 150,300 and 68,484 is: 102,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,149.60 : 150,300 = 68,484 : x
  2. Step 2: Convert to fraction form
    100,149.60/150,300 = 68,484/x
  3. Step 3: Cross multiply
    100,149.60x = 150,300 × 68,484
  4. Step 4: Simplify right side
    100,149.60x = 10,293,145,200
  5. Step 5: Solve for x
    x = 10,293,145,200/100,149.60
  6. Step 6: Final answer
    x = 102,777.70

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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.