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Finding the Fourth Proportional to 150,540.75, 207,750.81 and 82,560.55

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Solution

The fourth proportional to 150,540.75, 207,750.81 and 82,560.55 is: 113,936.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,540.75 : 207,750.81 = 82,560.55 : x
  2. Step 2: Convert to fraction form
    150,540.75/207,750.81 = 82,560.55/x
  3. Step 3: Cross multiply
    150,540.75x = 207,750.81 × 82,560.55
  4. Step 4: Simplify right side
    150,540.75x = 17,152,021,136.55
  5. Step 5: Solve for x
    x = 17,152,021,136.55/150,540.75
  6. Step 6: Final answer
    x = 113,936.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.