Home / 212,995.20-294,027.84-137,580.48

Finding the Fourth Proportional to 212,995.20, 294,027.84 and 137,580.48

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Solution

The fourth proportional to 212,995.20, 294,027.84 and 137,580.48 is: 189,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,995.20 : 294,027.84 = 137,580.48 : x
  2. Step 2: Convert to fraction form
    212,995.20/294,027.84 = 137,580.48/x
  3. Step 3: Cross multiply
    212,995.20x = 294,027.84 × 137,580.48
  4. Step 4: Simplify right side
    212,995.20x = 40,452,491,360.56
  5. Step 5: Solve for x
    x = 40,452,491,360.56/212,995.20
  6. Step 6: Final answer
    x = 189,922.08

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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.