Home / 135,811.86-203,728.68-51,612.36

Finding the Fourth Proportional to 135,811.86, 203,728.68 and 51,612.36

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Solution

The fourth proportional to 135,811.86, 203,728.68 and 51,612.36 is: 77,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,811.86 : 203,728.68 = 51,612.36 : x
  2. Step 2: Convert to fraction form
    135,811.86/203,728.68 = 51,612.36/x
  3. Step 3: Cross multiply
    135,811.86x = 203,728.68 × 51,612.36
  4. Step 4: Simplify right side
    135,811.86x = 10,514,917,974.48
  5. Step 5: Solve for x
    x = 10,514,917,974.48/135,811.86
  6. Step 6: Final answer
    x = 77,422.68

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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.