Home / 198,738.34-274,177.98-112,679.20

Finding the Fourth Proportional to 198,738.34, 274,177.98 and 112,679.20

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Solution

The fourth proportional to 198,738.34, 274,177.98 and 112,679.20 is: 155,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,738.34 : 274,177.98 = 112,679.20 : x
  2. Step 2: Convert to fraction form
    198,738.34/274,177.98 = 112,679.20/x
  3. Step 3: Cross multiply
    198,738.34x = 274,177.98 × 112,679.20
  4. Step 4: Simplify right side
    198,738.34x = 30,894,155,444.02
  5. Step 5: Solve for x
    x = 30,894,155,444.02/198,738.34
  6. Step 6: Final answer
    x = 155,451.41

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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.