Home / 198,180.08-273,335.64-137,749.52

Finding the Fourth Proportional to 198,180.08, 273,335.64 and 137,749.52

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Solution

The fourth proportional to 198,180.08, 273,335.64 and 137,749.52 is: 189,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,180.08 : 273,335.64 = 137,749.52 : x
  2. Step 2: Convert to fraction form
    198,180.08/273,335.64 = 137,749.52/x
  3. Step 3: Cross multiply
    198,180.08x = 273,335.64 × 137,749.52
  4. Step 4: Simplify right side
    198,180.08x = 37,651,853,208.89
  5. Step 5: Solve for x
    x = 37,651,853,208.89/198,180.08
  6. Step 6: Final answer
    x = 189,988.08

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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.