Home / 147,255.88-203,212.98-80,188.36

Finding the Fourth Proportional to 147,255.88, 203,212.98 and 80,188.36

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Solution

The fourth proportional to 147,255.88, 203,212.98 and 80,188.36 is: 110,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,255.88 : 203,212.98 = 80,188.36 : x
  2. Step 2: Convert to fraction form
    147,255.88/203,212.98 = 80,188.36/x
  3. Step 3: Cross multiply
    147,255.88x = 203,212.98 × 80,188.36
  4. Step 4: Simplify right side
    147,255.88x = 16,295,315,596.91
  5. Step 5: Solve for x
    x = 16,295,315,596.91/147,255.88
  6. Step 6: Final answer
    x = 110,659.86

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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.