Home / 198,708.32-274,078.68-134,935.40

Finding the Fourth Proportional to 198,708.32, 274,078.68 and 134,935.40

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Solution

The fourth proportional to 198,708.32, 274,078.68 and 134,935.40 is: 186,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,708.32 : 274,078.68 = 134,935.40 : x
  2. Step 2: Convert to fraction form
    198,708.32/274,078.68 = 134,935.40/x
  3. Step 3: Cross multiply
    198,708.32x = 274,078.68 × 134,935.40
  4. Step 4: Simplify right side
    198,708.32x = 36,982,916,317.27
  5. Step 5: Solve for x
    x = 36,982,916,317.27/198,708.32
  6. Step 6: Final answer
    x = 186,116.60

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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.