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Finding the Fourth Proportional to 127,305.78, 175,682.48 and 69,949.76

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Solution

The fourth proportional to 127,305.78, 175,682.48 and 69,949.76 is: 96,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.78 : 175,682.48 = 69,949.76 : x
  2. Step 2: Convert to fraction form
    127,305.78/175,682.48 = 69,949.76/x
  3. Step 3: Cross multiply
    127,305.78x = 175,682.48 × 69,949.76
  4. Step 4: Simplify right side
    127,305.78x = 12,288,946,084.04
  5. Step 5: Solve for x
    x = 12,288,946,084.04/127,305.78
  6. Step 6: Final answer
    x = 96,530.94

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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.