Home / 166,620.62-229,935.50-90,139.49

Finding the Fourth Proportional to 166,620.62, 229,935.50 and 90,139.49

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Solution

The fourth proportional to 166,620.62, 229,935.50 and 90,139.49 is: 124,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,620.62 : 229,935.50 = 90,139.49 : x
  2. Step 2: Convert to fraction form
    166,620.62/229,935.50 = 90,139.49/x
  3. Step 3: Cross multiply
    166,620.62x = 229,935.50 × 90,139.49
  4. Step 4: Simplify right side
    166,620.62x = 20,726,268,908.13
  5. Step 5: Solve for x
    x = 20,726,268,908.13/166,620.62
  6. Step 6: Final answer
    x = 124,391.98

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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.