Home / 166,126.70-229,254.84-90,675.20

Finding the Fourth Proportional to 166,126.70, 229,254.84 and 90,675.20

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Solution

The fourth proportional to 166,126.70, 229,254.84 and 90,675.20 is: 125,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,126.70 : 229,254.84 = 90,675.20 : x
  2. Step 2: Convert to fraction form
    166,126.70/229,254.84 = 90,675.20/x
  3. Step 3: Cross multiply
    166,126.70x = 229,254.84 × 90,675.20
  4. Step 4: Simplify right side
    166,126.70x = 20,787,727,321.69
  5. Step 5: Solve for x
    x = 20,787,727,321.69/166,126.70
  6. Step 6: Final answer
    x = 125,131.77

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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.