Home / 204,354.20-282,138.36-139,931.24

Finding the Fourth Proportional to 204,354.20, 282,138.36 and 139,931.24

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Solution

The fourth proportional to 204,354.20, 282,138.36 and 139,931.24 is: 193,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,354.20 : 282,138.36 = 139,931.24 : x
  2. Step 2: Convert to fraction form
    204,354.20/282,138.36 = 139,931.24/x
  3. Step 3: Cross multiply
    204,354.20x = 282,138.36 × 139,931.24
  4. Step 4: Simplify right side
    204,354.20x = 39,479,970,566.37
  5. Step 5: Solve for x
    x = 39,479,970,566.37/204,354.20
  6. Step 6: Final answer
    x = 193,193.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.