Home / 131,283.09-196,906.11-74,940.48

Finding the Fourth Proportional to 131,283.09, 196,906.11 and 74,940.48

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Solution

The fourth proportional to 131,283.09, 196,906.11 and 74,940.48 is: 112,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,283.09 : 196,906.11 = 74,940.48 : x
  2. Step 2: Convert to fraction form
    131,283.09/196,906.11 = 74,940.48/x
  3. Step 3: Cross multiply
    131,283.09x = 196,906.11 × 74,940.48
  4. Step 4: Simplify right side
    131,283.09x = 14,756,238,398.33
  5. Step 5: Solve for x
    x = 14,756,238,398.33/131,283.09
  6. Step 6: Final answer
    x = 112,400.15

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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.