Home / 193,537.50-290,098.89-81,189.42

Finding the Fourth Proportional to 193,537.50, 290,098.89 and 81,189.42

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Solution

The fourth proportional to 193,537.50, 290,098.89 and 81,189.42 is: 121,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,537.50 : 290,098.89 = 81,189.42 : x
  2. Step 2: Convert to fraction form
    193,537.50/290,098.89 = 81,189.42/x
  3. Step 3: Cross multiply
    193,537.50x = 290,098.89 × 81,189.42
  4. Step 4: Simplify right side
    193,537.50x = 23,552,960,621.74
  5. Step 5: Solve for x
    x = 23,552,960,621.74/193,537.50
  6. Step 6: Final answer
    x = 121,697.14

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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.