Home / 215,762.72-323,609.40-91,087.52

Finding the Fourth Proportional to 215,762.72, 323,609.40 and 91,087.52

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Solution

The fourth proportional to 215,762.72, 323,609.40 and 91,087.52 is: 136,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,762.72 : 323,609.40 = 91,087.52 : x
  2. Step 2: Convert to fraction form
    215,762.72/323,609.40 = 91,087.52/x
  3. Step 3: Cross multiply
    215,762.72x = 323,609.40 × 91,087.52
  4. Step 4: Simplify right side
    215,762.72x = 29,476,777,694.69
  5. Step 5: Solve for x
    x = 29,476,777,694.69/215,762.72
  6. Step 6: Final answer
    x = 136,616.64

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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.