Home / 166,623.61-229,939.63-90,142.49

Finding the Fourth Proportional to 166,623.61, 229,939.63 and 90,142.49

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Solution

The fourth proportional to 166,623.61, 229,939.63 and 90,142.49 is: 124,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,623.61 : 229,939.63 = 90,142.49 : x
  2. Step 2: Convert to fraction form
    166,623.61/229,939.63 = 90,142.49/x
  3. Step 3: Cross multiply
    166,623.61x = 229,939.63 × 90,142.49
  4. Step 4: Simplify right side
    166,623.61x = 20,727,331,147.37
  5. Step 5: Solve for x
    x = 20,727,331,147.37/166,623.61
  6. Step 6: Final answer
    x = 124,396.13

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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.