Home / 215,839.90-323,575.25-82,815.63

Finding the Fourth Proportional to 215,839.90, 323,575.25 and 82,815.63

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Solution

The fourth proportional to 215,839.90, 323,575.25 and 82,815.63 is: 124,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,839.90 : 323,575.25 = 82,815.63 : x
  2. Step 2: Convert to fraction form
    215,839.90/323,575.25 = 82,815.63/x
  3. Step 3: Cross multiply
    215,839.90x = 323,575.25 × 82,815.63
  4. Step 4: Simplify right side
    215,839.90x = 26,797,088,181.16
  5. Step 5: Solve for x
    x = 26,797,088,181.16/215,839.90
  6. Step 6: Final answer
    x = 124,152.62

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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.