Home / 198,915.62-274,509.40-108,277.50

Finding the Fourth Proportional to 198,915.62, 274,509.40 and 108,277.50

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Solution

The fourth proportional to 198,915.62, 274,509.40 and 108,277.50 is: 149,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,915.62 : 274,509.40 = 108,277.50 : x
  2. Step 2: Convert to fraction form
    198,915.62/274,509.40 = 108,277.50/x
  3. Step 3: Cross multiply
    198,915.62x = 274,509.40 × 108,277.50
  4. Step 4: Simplify right side
    198,915.62x = 29,723,191,287.81
  5. Step 5: Solve for x
    x = 29,723,191,287.81/198,915.62
  6. Step 6: Final answer
    x = 149,426.13

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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.