Home / 251,003.35-376,509.52-91,192.78

Finding the Fourth Proportional to 251,003.35, 376,509.52 and 91,192.78

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Solution

The fourth proportional to 251,003.35, 376,509.52 and 91,192.78 is: 136,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,003.35 : 376,509.52 = 91,192.78 : x
  2. Step 2: Convert to fraction form
    251,003.35/376,509.52 = 91,192.78/x
  3. Step 3: Cross multiply
    251,003.35x = 376,509.52 × 91,192.78
  4. Step 4: Simplify right side
    251,003.35x = 34,334,948,883.99
  5. Step 5: Solve for x
    x = 34,334,948,883.99/251,003.35
  6. Step 6: Final answer
    x = 136,790.80

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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.