Home / 214,921.02-322,436.20-126,249.50

Finding the Fourth Proportional to 214,921.02, 322,436.20 and 126,249.50

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Solution

The fourth proportional to 214,921.02, 322,436.20 and 126,249.50 is: 189,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,921.02 : 322,436.20 = 126,249.50 : x
  2. Step 2: Convert to fraction form
    214,921.02/322,436.20 = 126,249.50/x
  3. Step 3: Cross multiply
    214,921.02x = 322,436.20 × 126,249.50
  4. Step 4: Simplify right side
    214,921.02x = 40,707,409,031.90
  5. Step 5: Solve for x
    x = 40,707,409,031.90/214,921.02
  6. Step 6: Final answer
    x = 189,406.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.