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Finding the Fourth Proportional to 127,240, 175,612.81 and 73,556.14

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Solution

The fourth proportional to 127,240, 175,612.81 and 73,556.14 is: 101,519.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,240 : 175,612.81 = 73,556.14 : x
  2. Step 2: Convert to fraction form
    127,240/175,612.81 = 73,556.14/x
  3. Step 3: Cross multiply
    127,240x = 175,612.81 × 73,556.14
  4. Step 4: Simplify right side
    127,240x = 12,917,400,438.15
  5. Step 5: Solve for x
    x = 12,917,400,438.15/127,240
  6. Step 6: Final answer
    x = 101,519.97

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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.