Home / 135,414.90-186,856.47-83,723.94

Finding the Fourth Proportional to 135,414.90, 186,856.47 and 83,723.94

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Solution

The fourth proportional to 135,414.90, 186,856.47 and 83,723.94 is: 115,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,414.90 : 186,856.47 = 83,723.94 : x
  2. Step 2: Convert to fraction form
    135,414.90/186,856.47 = 83,723.94/x
  3. Step 3: Cross multiply
    135,414.90x = 186,856.47 × 83,723.94
  4. Step 4: Simplify right side
    135,414.90x = 15,644,359,882.89
  5. Step 5: Solve for x
    x = 15,644,359,882.89/135,414.90
  6. Step 6: Final answer
    x = 115,529.09

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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.