Home / 147,255.96-203,218.14-80,190.36

Finding the Fourth Proportional to 147,255.96, 203,218.14 and 80,190.36

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Solution

The fourth proportional to 147,255.96, 203,218.14 and 80,190.36 is: 110,665.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,255.96 : 203,218.14 = 80,190.36 : x
  2. Step 2: Convert to fraction form
    147,255.96/203,218.14 = 80,190.36/x
  3. Step 3: Cross multiply
    147,255.96x = 203,218.14 × 80,190.36
  4. Step 4: Simplify right side
    147,255.96x = 16,296,135,805.13
  5. Step 5: Solve for x
    x = 16,296,135,805.13/147,255.96
  6. Step 6: Final answer
    x = 110,665.37

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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.