Home / 166,039.40-229,137-90,587.90

Finding the Fourth Proportional to 166,039.40, 229,137 and 90,587.90

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Solution

The fourth proportional to 166,039.40, 229,137 and 90,587.90 is: 125,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,039.40 : 229,137 = 90,587.90 : x
  2. Step 2: Convert to fraction form
    166,039.40/229,137 = 90,587.90/x
  3. Step 3: Cross multiply
    166,039.40x = 229,137 × 90,587.90
  4. Step 4: Simplify right side
    166,039.40x = 20,757,039,642.30
  5. Step 5: Solve for x
    x = 20,757,039,642.30/166,039.40
  6. Step 6: Final answer
    x = 125,012.74

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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.