Home / 203,914.68-305,926.97-85,554.24

Finding the Fourth Proportional to 203,914.68, 305,926.97 and 85,554.24

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Solution

The fourth proportional to 203,914.68, 305,926.97 and 85,554.24 is: 128,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,914.68 : 305,926.97 = 85,554.24 : x
  2. Step 2: Convert to fraction form
    203,914.68/305,926.97 = 85,554.24/x
  3. Step 3: Cross multiply
    203,914.68x = 305,926.97 × 85,554.24
  4. Step 4: Simplify right side
    203,914.68x = 26,173,348,986.08
  5. Step 5: Solve for x
    x = 26,173,348,986.08/203,914.68
  6. Step 6: Final answer
    x = 128,354.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.