Home / 198,835.40-274,384.56-108,191.72

Finding the Fourth Proportional to 198,835.40, 274,384.56 and 108,191.72

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Solution

The fourth proportional to 198,835.40, 274,384.56 and 108,191.72 is: 149,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,835.40 : 274,384.56 = 108,191.72 : x
  2. Step 2: Convert to fraction form
    198,835.40/274,384.56 = 108,191.72/x
  3. Step 3: Cross multiply
    198,835.40x = 274,384.56 × 108,191.72
  4. Step 4: Simplify right side
    198,835.40x = 29,686,137,487.84
  5. Step 5: Solve for x
    x = 29,686,137,487.84/198,835.40
  6. Step 6: Final answer
    x = 149,300.06

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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.