Home / 204,983.38-307,570.02-78,581.38

Finding the Fourth Proportional to 204,983.38, 307,570.02 and 78,581.38

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Solution

The fourth proportional to 204,983.38, 307,570.02 and 78,581.38 is: 117,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,983.38 : 307,570.02 = 78,581.38 : x
  2. Step 2: Convert to fraction form
    204,983.38/307,570.02 = 78,581.38/x
  3. Step 3: Cross multiply
    204,983.38x = 307,570.02 × 78,581.38
  4. Step 4: Simplify right side
    204,983.38x = 24,169,276,618.23
  5. Step 5: Solve for x
    x = 24,169,276,618.23/204,983.38
  6. Step 6: Final answer
    x = 117,908.47

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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.