Home / 189,131.33-261,002.99-104,251.43

Finding the Fourth Proportional to 189,131.33, 261,002.99 and 104,251.43

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Solution

The fourth proportional to 189,131.33, 261,002.99 and 104,251.43 is: 143,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,131.33 : 261,002.99 = 104,251.43 : x
  2. Step 2: Convert to fraction form
    189,131.33/261,002.99 = 104,251.43/x
  3. Step 3: Cross multiply
    189,131.33x = 261,002.99 × 104,251.43
  4. Step 4: Simplify right side
    189,131.33x = 27,209,934,941.78
  5. Step 5: Solve for x
    x = 27,209,934,941.78/189,131.33
  6. Step 6: Final answer
    x = 143,867.94

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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.