Home / 213,844.69-320,127.94-129,349.15

Finding the Fourth Proportional to 213,844.69, 320,127.94 and 129,349.15

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Solution

The fourth proportional to 213,844.69, 320,127.94 and 129,349.15 is: 193,637.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,844.69 : 320,127.94 = 129,349.15 : x
  2. Step 2: Convert to fraction form
    213,844.69/320,127.94 = 129,349.15/x
  3. Step 3: Cross multiply
    213,844.69x = 320,127.94 × 129,349.15
  4. Step 4: Simplify right side
    213,844.69x = 41,408,274,682.87
  5. Step 5: Solve for x
    x = 41,408,274,682.87/213,844.69
  6. Step 6: Final answer
    x = 193,637.15

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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.