Home / 166,039.90-229,137.69-90,588.40

Finding the Fourth Proportional to 166,039.90, 229,137.69 and 90,588.40

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Solution

The fourth proportional to 166,039.90, 229,137.69 and 90,588.40 is: 125,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,039.90 : 229,137.69 = 90,588.40 : x
  2. Step 2: Convert to fraction form
    166,039.90/229,137.69 = 90,588.40/x
  3. Step 3: Cross multiply
    166,039.90x = 229,137.69 × 90,588.40
  4. Step 4: Simplify right side
    166,039.90x = 20,757,216,716.80
  5. Step 5: Solve for x
    x = 20,757,216,716.80/166,039.90
  6. Step 6: Final answer
    x = 125,013.43

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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.