Home / 203,493.65-280,917.66-135,623.75

Finding the Fourth Proportional to 203,493.65, 280,917.66 and 135,623.75

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Solution

The fourth proportional to 203,493.65, 280,917.66 and 135,623.75 is: 187,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,493.65 : 280,917.66 = 135,623.75 : x
  2. Step 2: Convert to fraction form
    203,493.65/280,917.66 = 135,623.75/x
  3. Step 3: Cross multiply
    203,493.65x = 280,917.66 × 135,623.75
  4. Step 4: Simplify right side
    203,493.65x = 38,099,106,490.43
  5. Step 5: Solve for x
    x = 38,099,106,490.43/203,493.65
  6. Step 6: Final answer
    x = 187,225.04

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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.