Home / 109,864.92-151,619.94-62,122.72

Finding the Fourth Proportional to 109,864.92, 151,619.94 and 62,122.72

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Solution

The fourth proportional to 109,864.92, 151,619.94 and 62,122.72 is: 85,732.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,864.92 : 151,619.94 = 62,122.72 : x
  2. Step 2: Convert to fraction form
    109,864.92/151,619.94 = 62,122.72/x
  3. Step 3: Cross multiply
    109,864.92x = 151,619.94 × 62,122.72
  4. Step 4: Simplify right side
    109,864.92x = 9,419,043,079.04
  5. Step 5: Solve for x
    x = 9,419,043,079.04/109,864.92
  6. Step 6: Final answer
    x = 85,732.94

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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.