Home / 198,865.02-274,434.28-108,220.88

Finding the Fourth Proportional to 198,865.02, 274,434.28 and 108,220.88

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Solution

The fourth proportional to 198,865.02, 274,434.28 and 108,220.88 is: 149,345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,865.02 : 274,434.28 = 108,220.88 : x
  2. Step 2: Convert to fraction form
    198,865.02/274,434.28 = 108,220.88/x
  3. Step 3: Cross multiply
    198,865.02x = 274,434.28 × 108,220.88
  4. Step 4: Simplify right side
    198,865.02x = 29,699,519,283.77
  5. Step 5: Solve for x
    x = 29,699,519,283.77/198,865.02
  6. Step 6: Final answer
    x = 149,345.12

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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.