Home / 193,623.31-290,548.74-81,294.89

Finding the Fourth Proportional to 193,623.31, 290,548.74 and 81,294.89

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Solution

The fourth proportional to 193,623.31, 290,548.74 and 81,294.89 is: 121,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,623.31 : 290,548.74 = 81,294.89 : x
  2. Step 2: Convert to fraction form
    193,623.31/290,548.74 = 81,294.89/x
  3. Step 3: Cross multiply
    193,623.31x = 290,548.74 × 81,294.89
  4. Step 4: Simplify right side
    193,623.31x = 23,620,128,584.31
  5. Step 5: Solve for x
    x = 23,620,128,584.31/193,623.31
  6. Step 6: Final answer
    x = 121,990.11

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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.