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Finding the Fourth Proportional to 166,958.68, 230,403.90 and 90,478.12

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Solution

The fourth proportional to 166,958.68, 230,403.90 and 90,478.12 is: 124,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,958.68 : 230,403.90 = 90,478.12 : x
  2. Step 2: Convert to fraction form
    166,958.68/230,403.90 = 90,478.12/x
  3. Step 3: Cross multiply
    166,958.68x = 230,403.90 × 90,478.12
  4. Step 4: Simplify right side
    166,958.68x = 20,846,511,712.67
  5. Step 5: Solve for x
    x = 20,846,511,712.67/166,958.68
  6. Step 6: Final answer
    x = 124,860.31

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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.