Home / 150,150.10-207,207.13-82,167.10

Finding the Fourth Proportional to 150,150.10, 207,207.13 and 82,167.10

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Solution

The fourth proportional to 150,150.10, 207,207.13 and 82,167.10 is: 113,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,150.10 : 207,207.13 = 82,167.10 : x
  2. Step 2: Convert to fraction form
    150,150.10/207,207.13 = 82,167.10/x
  3. Step 3: Cross multiply
    150,150.10x = 207,207.13 × 82,167.10
  4. Step 4: Simplify right side
    150,150.10x = 17,025,608,971.42
  5. Step 5: Solve for x
    x = 17,025,608,971.42/150,150.10
  6. Step 6: Final answer
    x = 113,390.59

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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.