Home / 202,805.56-279,778.62-131,208.85

Finding the Fourth Proportional to 202,805.56, 279,778.62 and 131,208.85

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Solution

The fourth proportional to 202,805.56, 279,778.62 and 131,208.85 is: 181,008.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,805.56 : 279,778.62 = 131,208.85 : x
  2. Step 2: Convert to fraction form
    202,805.56/279,778.62 = 131,208.85/x
  3. Step 3: Cross multiply
    202,805.56x = 279,778.62 × 131,208.85
  4. Step 4: Simplify right side
    202,805.56x = 36,709,430,984.79
  5. Step 5: Solve for x
    x = 36,709,430,984.79/202,805.56
  6. Step 6: Final answer
    x = 181,008.01

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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.