Home / 109,207.94-150,753.45-73,418.72

Finding the Fourth Proportional to 109,207.94, 150,753.45 and 73,418.72

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Solution

The fourth proportional to 109,207.94, 150,753.45 and 73,418.72 is: 101,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,207.94 : 150,753.45 = 73,418.72 : x
  2. Step 2: Convert to fraction form
    109,207.94/150,753.45 = 73,418.72/x
  3. Step 3: Cross multiply
    109,207.94x = 150,753.45 × 73,418.72
  4. Step 4: Simplify right side
    109,207.94x = 11,068,124,856.14
  5. Step 5: Solve for x
    x = 11,068,124,856.14/109,207.94
  6. Step 6: Final answer
    x = 101,349.09

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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.