Home / 204,977.40-307,466.10-72,007.80

Finding the Fourth Proportional to 204,977.40, 307,466.10 and 72,007.80

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Solution

The fourth proportional to 204,977.40, 307,466.10 and 72,007.80 is: 108,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,977.40 : 307,466.10 = 72,007.80 : x
  2. Step 2: Convert to fraction form
    204,977.40/307,466.10 = 72,007.80/x
  3. Step 3: Cross multiply
    204,977.40x = 307,466.10 × 72,007.80
  4. Step 4: Simplify right side
    204,977.40x = 22,139,957,435.58
  5. Step 5: Solve for x
    x = 22,139,957,435.58/204,977.40
  6. Step 6: Final answer
    x = 108,011.70

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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.