Home / 215,131.60-322,690.08-82,007.04

Finding the Fourth Proportional to 215,131.60, 322,690.08 and 82,007.04

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Solution

The fourth proportional to 215,131.60, 322,690.08 and 82,007.04 is: 123,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,131.60 : 322,690.08 = 82,007.04 : x
  2. Step 2: Convert to fraction form
    215,131.60/322,690.08 = 82,007.04/x
  3. Step 3: Cross multiply
    215,131.60x = 322,690.08 × 82,007.04
  4. Step 4: Simplify right side
    215,131.60x = 26,462,858,298.16
  5. Step 5: Solve for x
    x = 26,462,858,298.16/215,131.60
  6. Step 6: Final answer
    x = 123,007.77

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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.