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Finding the Fourth Proportional to 166,245.28, 229,435 and 99,177.28

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Solution

The fourth proportional to 166,245.28, 229,435 and 99,177.28 is: 136,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,245.28 : 229,435 = 99,177.28 : x
  2. Step 2: Convert to fraction form
    166,245.28/229,435 = 99,177.28/x
  3. Step 3: Cross multiply
    166,245.28x = 229,435 × 99,177.28
  4. Step 4: Simplify right side
    166,245.28x = 22,754,739,236.80
  5. Step 5: Solve for x
    x = 22,754,739,236.80/166,245.28
  6. Step 6: Final answer
    x = 136,874.50

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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.