Home / 228,918.12-315,910.86-126,947.88

Finding the Fourth Proportional to 228,918.12, 315,910.86 and 126,947.88

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Solution

The fourth proportional to 228,918.12, 315,910.86 and 126,947.88 is: 175,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,918.12 : 315,910.86 = 126,947.88 : x
  2. Step 2: Convert to fraction form
    228,918.12/315,910.86 = 126,947.88/x
  3. Step 3: Cross multiply
    228,918.12x = 315,910.86 × 126,947.88
  4. Step 4: Simplify right side
    228,918.12x = 40,104,213,945.98
  5. Step 5: Solve for x
    x = 40,104,213,945.98/228,918.12
  6. Step 6: Final answer
    x = 175,190.21

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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.