Home / 147,255.88-203,213.46-80,192.20

Finding the Fourth Proportional to 147,255.88, 203,213.46 and 80,192.20

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Solution

The fourth proportional to 147,255.88, 203,213.46 and 80,192.20 is: 110,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,255.88 : 203,213.46 = 80,192.20 : x
  2. Step 2: Convert to fraction form
    147,255.88/203,213.46 = 80,192.20/x
  3. Step 3: Cross multiply
    147,255.88x = 203,213.46 × 80,192.20
  4. Step 4: Simplify right side
    147,255.88x = 16,296,134,427.01
  5. Step 5: Solve for x
    x = 16,296,134,427.01/147,255.88
  6. Step 6: Final answer
    x = 110,665.42

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1.5x scale

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.