Home / 127,361.75-191,077.07-43,121.90

Finding the Fourth Proportional to 127,361.75, 191,077.07 and 43,121.90

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Solution

The fourth proportional to 127,361.75, 191,077.07 and 43,121.90 is: 64,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,361.75 : 191,077.07 = 43,121.90 : x
  2. Step 2: Convert to fraction form
    127,361.75/191,077.07 = 43,121.90/x
  3. Step 3: Cross multiply
    127,361.75x = 191,077.07 × 43,121.90
  4. Step 4: Simplify right side
    127,361.75x = 8,239,606,566.92
  5. Step 5: Solve for x
    x = 8,239,606,566.92/127,361.75
  6. Step 6: Final answer
    x = 64,694.52

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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.