Home / 166,890.72-230,309.44-91,439.20

Finding the Fourth Proportional to 166,890.72, 230,309.44 and 91,439.20

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Solution

The fourth proportional to 166,890.72, 230,309.44 and 91,439.20 is: 126,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,890.72 : 230,309.44 = 91,439.20 : x
  2. Step 2: Convert to fraction form
    166,890.72/230,309.44 = 91,439.20/x
  3. Step 3: Cross multiply
    166,890.72x = 230,309.44 × 91,439.20
  4. Step 4: Simplify right side
    166,890.72x = 21,059,310,946.05
  5. Step 5: Solve for x
    x = 21,059,310,946.05/166,890.72
  6. Step 6: Final answer
    x = 126,186.23

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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.