Home / 127,723.28-191,608.20-43,479.43

Finding the Fourth Proportional to 127,723.28, 191,608.20 and 43,479.43

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Solution

The fourth proportional to 127,723.28, 191,608.20 and 43,479.43 is: 65,227.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,723.28 : 191,608.20 = 43,479.43 : x
  2. Step 2: Convert to fraction form
    127,723.28/191,608.20 = 43,479.43/x
  3. Step 3: Cross multiply
    127,723.28x = 191,608.20 × 43,479.43
  4. Step 4: Simplify right side
    127,723.28x = 8,331,014,840.31
  5. Step 5: Solve for x
    x = 8,331,014,840.31/127,723.28
  6. Step 6: Final answer
    x = 65,227.07

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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.