Home / 190,910.40-263,485.08-137,372.64

Finding the Fourth Proportional to 190,910.40, 263,485.08 and 137,372.64

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Solution

The fourth proportional to 190,910.40, 263,485.08 and 137,372.64 is: 189,594.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,910.40 : 263,485.08 = 137,372.64 : x
  2. Step 2: Convert to fraction form
    190,910.40/263,485.08 = 137,372.64/x
  3. Step 3: Cross multiply
    190,910.40x = 263,485.08 × 137,372.64
  4. Step 4: Simplify right side
    190,910.40x = 36,195,641,040.21
  5. Step 5: Solve for x
    x = 36,195,641,040.21/190,910.40
  6. Step 6: Final answer
    x = 189,594.91

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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.