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Finding the Fourth Proportional to 131,227.72, 196,746.22 and 52,318.28

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Solution

The fourth proportional to 131,227.72, 196,746.22 and 52,318.28 is: 78,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,227.72 : 196,746.22 = 52,318.28 : x
  2. Step 2: Convert to fraction form
    131,227.72/196,746.22 = 52,318.28/x
  3. Step 3: Cross multiply
    131,227.72x = 196,746.22 × 52,318.28
  4. Step 4: Simplify right side
    131,227.72x = 10,293,423,826.90
  5. Step 5: Solve for x
    x = 10,293,423,826.90/131,227.72
  6. Step 6: Final answer
    x = 78,439.40

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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.