Home / 140,919.78-194,464.14-77,256.18

Finding the Fourth Proportional to 140,919.78, 194,464.14 and 77,256.18

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Solution

The fourth proportional to 140,919.78, 194,464.14 and 77,256.18 is: 106,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919.78 : 194,464.14 = 77,256.18 : x
  2. Step 2: Convert to fraction form
    140,919.78/194,464.14 = 77,256.18/x
  3. Step 3: Cross multiply
    140,919.78x = 194,464.14 × 77,256.18
  4. Step 4: Simplify right side
    140,919.78x = 15,023,556,603.39
  5. Step 5: Solve for x
    x = 15,023,556,603.39/140,919.78
  6. Step 6: Final answer
    x = 106,610.70

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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.