Home / 203,620.05-280,982.30-112,975.77

Finding the Fourth Proportional to 203,620.05, 280,982.30 and 112,975.77

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Solution

The fourth proportional to 203,620.05, 280,982.30 and 112,975.77 is: 155,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,620.05 : 280,982.30 = 112,975.77 : x
  2. Step 2: Convert to fraction form
    203,620.05/280,982.30 = 112,975.77/x
  3. Step 3: Cross multiply
    203,620.05x = 280,982.30 × 112,975.77
  4. Step 4: Simplify right side
    203,620.05x = 31,744,191,133.99
  5. Step 5: Solve for x
    x = 31,744,191,133.99/203,620.05
  6. Step 6: Final answer
    x = 155,899.14

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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.