Home / 166,623.23-229,939.11-90,142.12

Finding the Fourth Proportional to 166,623.23, 229,939.11 and 90,142.12

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Solution

The fourth proportional to 166,623.23, 229,939.11 and 90,142.12 is: 124,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,623.23 : 229,939.11 = 90,142.12 : x
  2. Step 2: Convert to fraction form
    166,623.23/229,939.11 = 90,142.12/x
  3. Step 3: Cross multiply
    166,623.23x = 229,939.11 × 90,142.12
  4. Step 4: Simplify right side
    166,623.23x = 20,727,198,271.47
  5. Step 5: Solve for x
    x = 20,727,198,271.47/166,623.23
  6. Step 6: Final answer
    x = 124,395.61

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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.