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Finding the Fourth Proportional to 166,697.89, 230,042.65 and 90,217.13

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Solution

The fourth proportional to 166,697.89, 230,042.65 and 90,217.13 is: 124,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,697.89 : 230,042.65 = 90,217.13 : x
  2. Step 2: Convert to fraction form
    166,697.89/230,042.65 = 90,217.13/x
  3. Step 3: Cross multiply
    166,697.89x = 230,042.65 × 90,217.13
  4. Step 4: Simplify right side
    166,697.89x = 20,753,787,747.99
  5. Step 5: Solve for x
    x = 20,753,787,747.99/166,697.89
  6. Step 6: Final answer
    x = 124,499.40

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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.