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Finding the Fourth Proportional to 150,160.38, 207,201.29 and 86,485.88

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Solution

The fourth proportional to 150,160.38, 207,201.29 and 86,485.88 is: 119,338.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,160.38 : 207,201.29 = 86,485.88 : x
  2. Step 2: Convert to fraction form
    150,160.38/207,201.29 = 86,485.88/x
  3. Step 3: Cross multiply
    150,160.38x = 207,201.29 × 86,485.88
  4. Step 4: Simplify right side
    150,160.38x = 17,919,985,309.33
  5. Step 5: Solve for x
    x = 17,919,985,309.33/150,160.38
  6. Step 6: Final answer
    x = 119,338.97

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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.