Home / 198,687.20-274,127.49-112,632.39

Finding the Fourth Proportional to 198,687.20, 274,127.49 and 112,632.39

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Solution

The fourth proportional to 198,687.20, 274,127.49 and 112,632.39 is: 155,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,687.20 : 274,127.49 = 112,632.39 : x
  2. Step 2: Convert to fraction form
    198,687.20/274,127.49 = 112,632.39/x
  3. Step 3: Cross multiply
    198,687.20x = 274,127.49 × 112,632.39
  4. Step 4: Simplify right side
    198,687.20x = 30,875,634,363.40
  5. Step 5: Solve for x
    x = 30,875,634,363.40/198,687.20
  6. Step 6: Final answer
    x = 155,398.21

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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.