Home / 209,124.42-313,690.05-75,921.54

Finding the Fourth Proportional to 209,124.42, 313,690.05 and 75,921.54

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Solution

The fourth proportional to 209,124.42, 313,690.05 and 75,921.54 is: 113,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,124.42 : 313,690.05 = 75,921.54 : x
  2. Step 2: Convert to fraction form
    209,124.42/313,690.05 = 75,921.54/x
  3. Step 3: Cross multiply
    209,124.42x = 313,690.05 × 75,921.54
  4. Step 4: Simplify right side
    209,124.42x = 23,815,831,678.68
  5. Step 5: Solve for x
    x = 23,815,831,678.68/209,124.42
  6. Step 6: Final answer
    x = 113,883.55

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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.