Home / 166,572.28-229,875.23-91,120.78

Finding the Fourth Proportional to 166,572.28, 229,875.23 and 91,120.78

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Solution

The fourth proportional to 166,572.28, 229,875.23 and 91,120.78 is: 125,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,572.28 : 229,875.23 = 91,120.78 : x
  2. Step 2: Convert to fraction form
    166,572.28/229,875.23 = 91,120.78/x
  3. Step 3: Cross multiply
    166,572.28x = 229,875.23 × 91,120.78
  4. Step 4: Simplify right side
    166,572.28x = 20,946,410,775.43
  5. Step 5: Solve for x
    x = 20,946,410,775.43/166,572.28
  6. Step 6: Final answer
    x = 125,749.68

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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.