Home / 204,997.32-307,508.94-86,653.08

Finding the Fourth Proportional to 204,997.32, 307,508.94 and 86,653.08

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Solution

The fourth proportional to 204,997.32, 307,508.94 and 86,653.08 is: 129,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,997.32 : 307,508.94 = 86,653.08 : x
  2. Step 2: Convert to fraction form
    204,997.32/307,508.94 = 86,653.08/x
  3. Step 3: Cross multiply
    204,997.32x = 307,508.94 × 86,653.08
  4. Step 4: Simplify right side
    204,997.32x = 26,646,596,778.54
  5. Step 5: Solve for x
    x = 26,646,596,778.54/204,997.32
  6. Step 6: Final answer
    x = 129,985.10

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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.