Home / 198,206.88-273,436.20-117,637.80

Finding the Fourth Proportional to 198,206.88, 273,436.20 and 117,637.80

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Solution

The fourth proportional to 198,206.88, 273,436.20 and 117,637.80 is: 162,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,206.88 : 273,436.20 = 117,637.80 : x
  2. Step 2: Convert to fraction form
    198,206.88/273,436.20 = 117,637.80/x
  3. Step 3: Cross multiply
    198,206.88x = 273,436.20 × 117,637.80
  4. Step 4: Simplify right side
    198,206.88x = 32,166,433,008.36
  5. Step 5: Solve for x
    x = 32,166,433,008.36/198,206.88
  6. Step 6: Final answer
    x = 162,287.17

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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.