Home / 193,476.30-290,326.54-81,146.50

Finding the Fourth Proportional to 193,476.30, 290,326.54 and 81,146.50

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Solution

The fourth proportional to 193,476.30, 290,326.54 and 81,146.50 is: 121,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,476.30 : 290,326.54 = 81,146.50 : x
  2. Step 2: Convert to fraction form
    193,476.30/290,326.54 = 81,146.50/x
  3. Step 3: Cross multiply
    193,476.30x = 290,326.54 × 81,146.50
  4. Step 4: Simplify right side
    193,476.30x = 23,558,982,578.11
  5. Step 5: Solve for x
    x = 23,558,982,578.11/193,476.30
  6. Step 6: Final answer
    x = 121,766.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.