Home / 208,638.42-312,819.38-75,501.36

Finding the Fourth Proportional to 208,638.42, 312,819.38 and 75,501.36

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Solution

The fourth proportional to 208,638.42, 312,819.38 and 75,501.36 is: 113,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,638.42 : 312,819.38 = 75,501.36 : x
  2. Step 2: Convert to fraction form
    208,638.42/312,819.38 = 75,501.36/x
  3. Step 3: Cross multiply
    208,638.42x = 312,819.38 × 75,501.36
  4. Step 4: Simplify right side
    208,638.42x = 23,618,288,624.36
  5. Step 5: Solve for x
    x = 23,618,288,624.36/208,638.42
  6. Step 6: Final answer
    x = 113,202.01

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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.