Home / 198,681.02-274,179.79-109,257.02

Finding the Fourth Proportional to 198,681.02, 274,179.79 and 109,257.02

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Solution

The fourth proportional to 198,681.02, 274,179.79 and 109,257.02 is: 150,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,681.02 : 274,179.79 = 109,257.02 : x
  2. Step 2: Convert to fraction form
    198,681.02/274,179.79 = 109,257.02/x
  3. Step 3: Cross multiply
    198,681.02x = 274,179.79 × 109,257.02
  4. Step 4: Simplify right side
    198,681.02x = 29,956,066,799.63
  5. Step 5: Solve for x
    x = 29,956,066,799.63/198,681.02
  6. Step 6: Final answer
    x = 150,774.68

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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.