Home / 166,020.32-229,111.68-90,568.76

Finding the Fourth Proportional to 166,020.32, 229,111.68 and 90,568.76

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Solution

The fourth proportional to 166,020.32, 229,111.68 and 90,568.76 is: 124,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,020.32 : 229,111.68 = 90,568.76 : x
  2. Step 2: Convert to fraction form
    166,020.32/229,111.68 = 90,568.76/x
  3. Step 3: Cross multiply
    166,020.32x = 229,111.68 × 90,568.76
  4. Step 4: Simplify right side
    166,020.32x = 20,750,360,759.12
  5. Step 5: Solve for x
    x = 20,750,360,759.12/166,020.32
  6. Step 6: Final answer
    x = 124,986.87

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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.