Home / 135,910.72-203,827.20-42,391.36

Finding the Fourth Proportional to 135,910.72, 203,827.20 and 42,391.36

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Solution

The fourth proportional to 135,910.72, 203,827.20 and 42,391.36 is: 63,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,910.72 : 203,827.20 = 42,391.36 : x
  2. Step 2: Convert to fraction form
    135,910.72/203,827.20 = 42,391.36/x
  3. Step 3: Cross multiply
    135,910.72x = 203,827.20 × 42,391.36
  4. Step 4: Simplify right side
    135,910.72x = 8,640,512,212.99
  5. Step 5: Solve for x
    x = 8,640,512,212.99/135,910.72
  6. Step 6: Final answer
    x = 63,574.91

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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.