Home / 201,945.80-302,830.14-68,789.36

Finding the Fourth Proportional to 201,945.80, 302,830.14 and 68,789.36

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Solution

The fourth proportional to 201,945.80, 302,830.14 and 68,789.36 is: 103,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,945.80 : 302,830.14 = 68,789.36 : x
  2. Step 2: Convert to fraction form
    201,945.80/302,830.14 = 68,789.36/x
  3. Step 3: Cross multiply
    201,945.80x = 302,830.14 × 68,789.36
  4. Step 4: Simplify right side
    201,945.80x = 20,831,491,519.31
  5. Step 5: Solve for x
    x = 20,831,491,519.31/201,945.80
  6. Step 6: Final answer
    x = 103,153.87

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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.