Home / 198,834.89-274,390.91-108,191.18

Finding the Fourth Proportional to 198,834.89, 274,390.91 and 108,191.18

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Solution

The fourth proportional to 198,834.89, 274,390.91 and 108,191.18 is: 149,303.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,834.89 : 274,390.91 = 108,191.18 : x
  2. Step 2: Convert to fraction form
    198,834.89/274,390.91 = 108,191.18/x
  3. Step 3: Cross multiply
    198,834.89x = 274,390.91 × 108,191.18
  4. Step 4: Simplify right side
    198,834.89x = 29,686,674,421.26
  5. Step 5: Solve for x
    x = 29,686,674,421.26/198,834.89
  6. Step 6: Final answer
    x = 149,303.15

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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.