Home / 198,582.72-274,065.76-113,727.68

Finding the Fourth Proportional to 198,582.72, 274,065.76 and 113,727.68

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Solution

The fourth proportional to 198,582.72, 274,065.76 and 113,727.68 is: 156,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,582.72 : 274,065.76 = 113,727.68 : x
  2. Step 2: Convert to fraction form
    198,582.72/274,065.76 = 113,727.68/x
  3. Step 3: Cross multiply
    198,582.72x = 274,065.76 × 113,727.68
  4. Step 4: Simplify right side
    198,582.72x = 31,168,863,052.24
  5. Step 5: Solve for x
    x = 31,168,863,052.24/198,582.72
  6. Step 6: Final answer
    x = 156,956.57

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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.