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Finding the Fourth Proportional to 127,710.40, 176,228.40 and 73,997.44

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Solution

The fourth proportional to 127,710.40, 176,228.40 and 73,997.44 is: 102,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,710.40 : 176,228.40 = 73,997.44 : x
  2. Step 2: Convert to fraction form
    127,710.40/176,228.40 = 73,997.44/x
  3. Step 3: Cross multiply
    127,710.40x = 176,228.40 × 73,997.44
  4. Step 4: Simplify right side
    127,710.40x = 13,040,450,455.30
  5. Step 5: Solve for x
    x = 13,040,450,455.30/127,710.40
  6. Step 6: Final answer
    x = 102,109.54

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1.5x scale

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.