Home / 204,932.69-307,187.89-78,543.53

Finding the Fourth Proportional to 204,932.69, 307,187.89 and 78,543.53

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Solution

The fourth proportional to 204,932.69, 307,187.89 and 78,543.53 is: 117,734.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,932.69 : 307,187.89 = 78,543.53 : x
  2. Step 2: Convert to fraction form
    204,932.69/307,187.89 = 78,543.53/x
  3. Step 3: Cross multiply
    204,932.69x = 307,187.89 × 78,543.53
  4. Step 4: Simplify right side
    204,932.69x = 24,127,621,253.85
  5. Step 5: Solve for x
    x = 24,127,621,253.85/204,932.69
  6. Step 6: Final answer
    x = 117,734.37

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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.