Home / 236,003.05-353,873.34-78,145.39

Finding the Fourth Proportional to 236,003.05, 353,873.34 and 78,145.39

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Solution

The fourth proportional to 236,003.05, 353,873.34 and 78,145.39 is: 117,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,003.05 : 353,873.34 = 78,145.39 : x
  2. Step 2: Convert to fraction form
    236,003.05/353,873.34 = 78,145.39/x
  3. Step 3: Cross multiply
    236,003.05x = 353,873.34 × 78,145.39
  4. Step 4: Simplify right side
    236,003.05x = 27,653,570,164.90
  5. Step 5: Solve for x
    x = 27,653,570,164.90/236,003.05
  6. Step 6: Final answer
    x = 117,174.63

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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.