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Finding the Fourth Proportional to 150,198.93, 207,270.42 and 85,666.71

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Solution

The fourth proportional to 150,198.93, 207,270.42 and 85,666.71 is: 118,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,198.93 : 207,270.42 = 85,666.71 : x
  2. Step 2: Convert to fraction form
    150,198.93/207,270.42 = 85,666.71/x
  3. Step 3: Cross multiply
    150,198.93x = 207,270.42 × 85,666.71
  4. Step 4: Simplify right side
    150,198.93x = 17,756,175,658.67
  5. Step 5: Solve for x
    x = 17,756,175,658.67/150,198.93
  6. Step 6: Final answer
    x = 118,217.72

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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.