Home / 126,936.57-190,217.67-70,699.21

Finding the Fourth Proportional to 126,936.57, 190,217.67 and 70,699.21

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Solution

The fourth proportional to 126,936.57, 190,217.67 and 70,699.21 is: 105,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,936.57 : 190,217.67 = 70,699.21 : x
  2. Step 2: Convert to fraction form
    126,936.57/190,217.67 = 70,699.21/x
  3. Step 3: Cross multiply
    126,936.57x = 190,217.67 × 70,699.21
  4. Step 4: Simplify right side
    126,936.57x = 13,448,238,997.04
  5. Step 5: Solve for x
    x = 13,448,238,997.04/126,936.57
  6. Step 6: Final answer
    x = 105,944.56

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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.