Home / 127,370.62-190,982.13-52,406.09

Finding the Fourth Proportional to 127,370.62, 190,982.13 and 52,406.09

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Solution

The fourth proportional to 127,370.62, 190,982.13 and 52,406.09 is: 78,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,370.62 : 190,982.13 = 52,406.09 : x
  2. Step 2: Convert to fraction form
    127,370.62/190,982.13 = 52,406.09/x
  3. Step 3: Cross multiply
    127,370.62x = 190,982.13 × 52,406.09
  4. Step 4: Simplify right side
    127,370.62x = 10,008,625,934.78
  5. Step 5: Solve for x
    x = 10,008,625,934.78/127,370.62
  6. Step 6: Final answer
    x = 78,578.76

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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.