Home / 198,189.15-273,386.64-126,488.35

Finding the Fourth Proportional to 198,189.15, 273,386.64 and 126,488.35

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Solution

The fourth proportional to 198,189.15, 273,386.64 and 126,488.35 is: 174,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,189.15 : 273,386.64 = 126,488.35 : x
  2. Step 2: Convert to fraction form
    198,189.15/273,386.64 = 126,488.35/x
  3. Step 3: Cross multiply
    198,189.15x = 273,386.64 × 126,488.35
  4. Step 4: Simplify right side
    198,189.15x = 34,580,225,005.64
  5. Step 5: Solve for x
    x = 34,580,225,005.64/198,189.15
  6. Step 6: Final answer
    x = 174,480.92

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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.