Home / 135,514.72-203,458.27-68,999.54

Finding the Fourth Proportional to 135,514.72, 203,458.27 and 68,999.54

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Solution

The fourth proportional to 135,514.72, 203,458.27 and 68,999.54 is: 103,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,514.72 : 203,458.27 = 68,999.54 : x
  2. Step 2: Convert to fraction form
    135,514.72/203,458.27 = 68,999.54/x
  3. Step 3: Cross multiply
    135,514.72x = 203,458.27 × 68,999.54
  4. Step 4: Simplify right side
    135,514.72x = 14,038,527,039.20
  5. Step 5: Solve for x
    x = 14,038,527,039.20/135,514.72
  6. Step 6: Final answer
    x = 103,594.12

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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.