Home / 208,949.70-313,629.35-103,887.30

Finding the Fourth Proportional to 208,949.70, 313,629.35 and 103,887.30

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Solution

The fourth proportional to 208,949.70, 313,629.35 and 103,887.30 is: 155,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,949.70 : 313,629.35 = 103,887.30 : x
  2. Step 2: Convert to fraction form
    208,949.70/313,629.35 = 103,887.30/x
  3. Step 3: Cross multiply
    208,949.70x = 313,629.35 × 103,887.30
  4. Step 4: Simplify right side
    208,949.70x = 32,582,106,372.26
  5. Step 5: Solve for x
    x = 32,582,106,372.26/208,949.70
  6. Step 6: Final answer
    x = 155,932.77

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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.