Home / 199,391.60-275,004.83-127,778.28

Finding the Fourth Proportional to 199,391.60, 275,004.83 and 127,778.28

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Solution

The fourth proportional to 199,391.60, 275,004.83 and 127,778.28 is: 176,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,391.60 : 275,004.83 = 127,778.28 : x
  2. Step 2: Convert to fraction form
    199,391.60/275,004.83 = 127,778.28/x
  3. Step 3: Cross multiply
    199,391.60x = 275,004.83 × 127,778.28
  4. Step 4: Simplify right side
    199,391.60x = 35,139,643,530.20
  5. Step 5: Solve for x
    x = 35,139,643,530.20/199,391.60
  6. Step 6: Final answer
    x = 176,234.33

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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.