Home / 198,705.32-274,209.54-109,281.32

Finding the Fourth Proportional to 198,705.32, 274,209.54 and 109,281.32

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Solution

The fourth proportional to 198,705.32, 274,209.54 and 109,281.32 is: 150,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,705.32 : 274,209.54 = 109,281.32 : x
  2. Step 2: Convert to fraction form
    198,705.32/274,209.54 = 109,281.32/x
  3. Step 3: Cross multiply
    198,705.32x = 274,209.54 × 109,281.32
  4. Step 4: Simplify right side
    198,705.32x = 29,965,980,487.79
  5. Step 5: Solve for x
    x = 29,965,980,487.79/198,705.32
  6. Step 6: Final answer
    x = 150,806.13

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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.