Home / 134,892.43-186,122.68-78,273.43

Finding the Fourth Proportional to 134,892.43, 186,122.68 and 78,273.43

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Solution

The fourth proportional to 134,892.43, 186,122.68 and 78,273.43 is: 108,000.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,892.43 : 186,122.68 = 78,273.43 : x
  2. Step 2: Convert to fraction form
    134,892.43/186,122.68 = 78,273.43/x
  3. Step 3: Cross multiply
    134,892.43x = 186,122.68 × 78,273.43
  4. Step 4: Simplify right side
    134,892.43x = 14,568,460,173.03
  5. Step 5: Solve for x
    x = 14,568,460,173.03/134,892.43
  6. Step 6: Final answer
    x = 108,000.58

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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.