Home / 131,983.62-182,135.16-74,622

Finding the Fourth Proportional to 131,983.62, 182,135.16 and 74,622

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Solution

The fourth proportional to 131,983.62, 182,135.16 and 74,622 is: 102,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,983.62 : 182,135.16 = 74,622 : x
  2. Step 2: Convert to fraction form
    131,983.62/182,135.16 = 74,622/x
  3. Step 3: Cross multiply
    131,983.62x = 182,135.16 × 74,622
  4. Step 4: Simplify right side
    131,983.62x = 13,591,289,909.52
  5. Step 5: Solve for x
    x = 13,591,289,909.52/131,983.62
  6. Step 6: Final answer
    x = 102,977.10

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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.