Home / 215,725.35-323,597.74-82,571.07

Finding the Fourth Proportional to 215,725.35, 323,597.74 and 82,571.07

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Solution

The fourth proportional to 215,725.35, 323,597.74 and 82,571.07 is: 123,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,725.35 : 323,597.74 = 82,571.07 : x
  2. Step 2: Convert to fraction form
    215,725.35/323,597.74 = 82,571.07/x
  3. Step 3: Cross multiply
    215,725.35x = 323,597.74 × 82,571.07
  4. Step 4: Simplify right side
    215,725.35x = 26,719,811,641.38
  5. Step 5: Solve for x
    x = 26,719,811,641.38/215,725.35
  6. Step 6: Final answer
    x = 123,860.32

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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.