Home / 131,286.24-181,197.70-76,087.87

Finding the Fourth Proportional to 131,286.24, 181,197.70 and 76,087.87

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Solution

The fourth proportional to 131,286.24, 181,197.70 and 76,087.87 is: 105,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,286.24 : 181,197.70 = 76,087.87 : x
  2. Step 2: Convert to fraction form
    131,286.24/181,197.70 = 76,087.87/x
  3. Step 3: Cross multiply
    131,286.24x = 181,197.70 × 76,087.87
  4. Step 4: Simplify right side
    131,286.24x = 13,786,946,398.69
  5. Step 5: Solve for x
    x = 13,786,946,398.69/131,286.24
  6. Step 6: Final answer
    x = 105,014.41

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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.