Home / 193,397.82-289,897.17-81,143.22

Finding the Fourth Proportional to 193,397.82, 289,897.17 and 81,143.22

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Solution

The fourth proportional to 193,397.82, 289,897.17 and 81,143.22 is: 121,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,397.82 : 289,897.17 = 81,143.22 : x
  2. Step 2: Convert to fraction form
    193,397.82/289,897.17 = 81,143.22/x
  3. Step 3: Cross multiply
    193,397.82x = 289,897.17 × 81,143.22
  4. Step 4: Simplify right side
    193,397.82x = 23,523,189,842.69
  5. Step 5: Solve for x
    x = 23,523,189,842.69/193,397.82
  6. Step 6: Final answer
    x = 121,631.10

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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.