Home / 166,289.57-229,480.31-90,839.69

Finding the Fourth Proportional to 166,289.57, 229,480.31 and 90,839.69

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Solution

The fourth proportional to 166,289.57, 229,480.31 and 90,839.69 is: 125,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,289.57 : 229,480.31 = 90,839.69 : x
  2. Step 2: Convert to fraction form
    166,289.57/229,480.31 = 90,839.69/x
  3. Step 3: Cross multiply
    166,289.57x = 229,480.31 × 90,839.69
  4. Step 4: Simplify right side
    166,289.57x = 20,845,920,221.50
  5. Step 5: Solve for x
    x = 20,845,920,221.50/166,289.57
  6. Step 6: Final answer
    x = 125,359.16

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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.