Home / 102,074.92-140,864.26-66,278.44

Finding the Fourth Proportional to 102,074.92, 140,864.26 and 66,278.44

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Solution

The fourth proportional to 102,074.92, 140,864.26 and 66,278.44 is: 91,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,074.92 : 140,864.26 = 66,278.44 : x
  2. Step 2: Convert to fraction form
    102,074.92/140,864.26 = 66,278.44/x
  3. Step 3: Cross multiply
    102,074.92x = 140,864.26 × 66,278.44
  4. Step 4: Simplify right side
    102,074.92x = 9,336,263,404.55
  5. Step 5: Solve for x
    x = 9,336,263,404.55/102,074.92
  6. Step 6: Final answer
    x = 91,464.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.