Home / 198,688.02-274,192.72-108,045.78

Finding the Fourth Proportional to 198,688.02, 274,192.72 and 108,045.78

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Solution

The fourth proportional to 198,688.02, 274,192.72 and 108,045.78 is: 149,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,688.02 : 274,192.72 = 108,045.78 : x
  2. Step 2: Convert to fraction form
    198,688.02/274,192.72 = 108,045.78/x
  3. Step 3: Cross multiply
    198,688.02x = 274,192.72 × 108,045.78
  4. Step 4: Simplify right side
    198,688.02x = 29,625,366,302.72
  5. Step 5: Solve for x
    x = 29,625,366,302.72/198,688.02
  6. Step 6: Final answer
    x = 149,104.95

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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.