Home / 198,809.97-273,979.83-142,122.93

Finding the Fourth Proportional to 198,809.97, 273,979.83 and 142,122.93

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Solution

The fourth proportional to 198,809.97, 273,979.83 and 142,122.93 is: 195,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,809.97 : 273,979.83 = 142,122.93 : x
  2. Step 2: Convert to fraction form
    198,809.97/273,979.83 = 142,122.93/x
  3. Step 3: Cross multiply
    198,809.97x = 273,979.83 × 142,122.93
  4. Step 4: Simplify right side
    198,809.97x = 38,938,816,200.50
  5. Step 5: Solve for x
    x = 38,938,816,200.50/198,809.97
  6. Step 6: Final answer
    x = 195,859.47

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1.5x scale

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.