Home / 208,954.08-313,429.68-84,293.28

Finding the Fourth Proportional to 208,954.08, 313,429.68 and 84,293.28

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Solution

The fourth proportional to 208,954.08, 313,429.68 and 84,293.28 is: 126,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,954.08 : 313,429.68 = 84,293.28 : x
  2. Step 2: Convert to fraction form
    208,954.08/313,429.68 = 84,293.28/x
  3. Step 3: Cross multiply
    208,954.08x = 313,429.68 × 84,293.28
  4. Step 4: Simplify right side
    208,954.08x = 26,420,015,776.55
  5. Step 5: Solve for x
    x = 26,420,015,776.55/208,954.08
  6. Step 6: Final answer
    x = 126,439.34

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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.