Home / 166,106.11-229,223.24-90,655.15

Finding the Fourth Proportional to 166,106.11, 229,223.24 and 90,655.15

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Solution

The fourth proportional to 166,106.11, 229,223.24 and 90,655.15 is: 125,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,106.11 : 229,223.24 = 90,655.15 : x
  2. Step 2: Convert to fraction form
    166,106.11/229,223.24 = 90,655.15/x
  3. Step 3: Cross multiply
    166,106.11x = 229,223.24 × 90,655.15
  4. Step 4: Simplify right side
    166,106.11x = 20,780,266,752.41
  5. Step 5: Solve for x
    x = 20,780,266,752.41/166,106.11
  6. Step 6: Final answer
    x = 125,102.36

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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.