Home / 166,990.20-230,445.12-91,538.52

Finding the Fourth Proportional to 166,990.20, 230,445.12 and 91,538.52

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Solution

The fourth proportional to 166,990.20, 230,445.12 and 91,538.52 is: 126,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,990.20 : 230,445.12 = 91,538.52 : x
  2. Step 2: Convert to fraction form
    166,990.20/230,445.12 = 91,538.52/x
  3. Step 3: Cross multiply
    166,990.20x = 230,445.12 × 91,538.52
  4. Step 4: Simplify right side
    166,990.20x = 21,094,605,226.02
  5. Step 5: Solve for x
    x = 21,094,605,226.02/166,990.20
  6. Step 6: Final answer
    x = 126,322.41

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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.