Home / 208,579.03-312,682.97-75,429.70

Finding the Fourth Proportional to 208,579.03, 312,682.97 and 75,429.70

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Solution

The fourth proportional to 208,579.03, 312,682.97 and 75,429.70 is: 113,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,579.03 : 312,682.97 = 75,429.70 : x
  2. Step 2: Convert to fraction form
    208,579.03/312,682.97 = 75,429.70/x
  3. Step 3: Cross multiply
    208,579.03x = 312,682.97 × 75,429.70
  4. Step 4: Simplify right side
    208,579.03x = 23,585,582,622.21
  5. Step 5: Solve for x
    x = 23,585,582,622.21/208,579.03
  6. Step 6: Final answer
    x = 113,077.44

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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.