Home / 236,490.49-326,363.79-129,067.42

Finding the Fourth Proportional to 236,490.49, 326,363.79 and 129,067.42

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Solution

The fourth proportional to 236,490.49, 326,363.79 and 129,067.42 is: 178,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,490.49 : 326,363.79 = 129,067.42 : x
  2. Step 2: Convert to fraction form
    236,490.49/326,363.79 = 129,067.42/x
  3. Step 3: Cross multiply
    236,490.49x = 326,363.79 × 129,067.42
  4. Step 4: Simplify right side
    236,490.49x = 42,122,932,356.72
  5. Step 5: Solve for x
    x = 42,122,932,356.72/236,490.49
  6. Step 6: Final answer
    x = 178,116.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.