Home / 198,979.29-274,502.70-134,427.78

Finding the Fourth Proportional to 198,979.29, 274,502.70 and 134,427.78

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Solution

The fourth proportional to 198,979.29, 274,502.70 and 134,427.78 is: 185,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,979.29 : 274,502.70 = 134,427.78 : x
  2. Step 2: Convert to fraction form
    198,979.29/274,502.70 = 134,427.78/x
  3. Step 3: Cross multiply
    198,979.29x = 274,502.70 × 134,427.78
  4. Step 4: Simplify right side
    198,979.29x = 36,900,788,565.01
  5. Step 5: Solve for x
    x = 36,900,788,565.01/198,979.29
  6. Step 6: Final answer
    x = 185,450.40

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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.