Home / 215,076.96-322,405.20-96,778.08

Finding the Fourth Proportional to 215,076.96, 322,405.20 and 96,778.08

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Solution

The fourth proportional to 215,076.96, 322,405.20 and 96,778.08 is: 145,072.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,076.96 : 322,405.20 = 96,778.08 : x
  2. Step 2: Convert to fraction form
    215,076.96/322,405.20 = 96,778.08/x
  3. Step 3: Cross multiply
    215,076.96x = 322,405.20 × 96,778.08
  4. Step 4: Simplify right side
    215,076.96x = 31,201,756,238.02
  5. Step 5: Solve for x
    x = 31,201,756,238.02/215,076.96
  6. Step 6: Final answer
    x = 145,072.52

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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.