Home / 204,911.80-307,562.10-126,179.80

Finding the Fourth Proportional to 204,911.80, 307,562.10 and 126,179.80

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Solution

The fourth proportional to 204,911.80, 307,562.10 and 126,179.80 is: 189,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,911.80 : 307,562.10 = 126,179.80 : x
  2. Step 2: Convert to fraction form
    204,911.80/307,562.10 = 126,179.80/x
  3. Step 3: Cross multiply
    204,911.80x = 307,562.10 × 126,179.80
  4. Step 4: Simplify right side
    204,911.80x = 38,808,124,265.58
  5. Step 5: Solve for x
    x = 38,808,124,265.58/204,911.80
  6. Step 6: Final answer
    x = 189,389.41

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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.