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Finding the Fourth Proportional to 150,581.76, 207,796.23 and 90,186

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Solution

The fourth proportional to 150,581.76, 207,796.23 and 90,186 is: 124,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,581.76 : 207,796.23 = 90,186 : x
  2. Step 2: Convert to fraction form
    150,581.76/207,796.23 = 90,186/x
  3. Step 3: Cross multiply
    150,581.76x = 207,796.23 × 90,186
  4. Step 4: Simplify right side
    150,581.76x = 18,740,310,798.78
  5. Step 5: Solve for x
    x = 18,740,310,798.78/150,581.76
  6. Step 6: Final answer
    x = 124,452.73

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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.