Home / 127,914.88-191,872.78-39,168.02

Finding the Fourth Proportional to 127,914.88, 191,872.78 and 39,168.02

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Solution

The fourth proportional to 127,914.88, 191,872.78 and 39,168.02 is: 58,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,914.88 : 191,872.78 = 39,168.02 : x
  2. Step 2: Convert to fraction form
    127,914.88/191,872.78 = 39,168.02/x
  3. Step 3: Cross multiply
    127,914.88x = 191,872.78 × 39,168.02
  4. Step 4: Simplify right side
    127,914.88x = 7,515,276,884.50
  5. Step 5: Solve for x
    x = 7,515,276,884.50/127,914.88
  6. Step 6: Final answer
    x = 58,752.17

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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.