Home / 135,462.18-186,939.15-81,736.83

Finding the Fourth Proportional to 135,462.18, 186,939.15 and 81,736.83

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Solution

The fourth proportional to 135,462.18, 186,939.15 and 81,736.83 is: 112,797.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,462.18 : 186,939.15 = 81,736.83 : x
  2. Step 2: Convert to fraction form
    135,462.18/186,939.15 = 81,736.83/x
  3. Step 3: Cross multiply
    135,462.18x = 186,939.15 × 81,736.83
  4. Step 4: Simplify right side
    135,462.18x = 15,279,813,523.89
  5. Step 5: Solve for x
    x = 15,279,813,523.89/135,462.18
  6. Step 6: Final answer
    x = 112,797.63

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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.