Home / 189,571.32-284,138.28-71,167.14

Finding the Fourth Proportional to 189,571.32, 284,138.28 and 71,167.14

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Solution

The fourth proportional to 189,571.32, 284,138.28 and 71,167.14 is: 106,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,571.32 : 284,138.28 = 71,167.14 : x
  2. Step 2: Convert to fraction form
    189,571.32/284,138.28 = 71,167.14/x
  3. Step 3: Cross multiply
    189,571.32x = 284,138.28 × 71,167.14
  4. Step 4: Simplify right side
    189,571.32x = 20,221,308,752.12
  5. Step 5: Solve for x
    x = 20,221,308,752.12/189,571.32
  6. Step 6: Final answer
    x = 106,668.61

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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.