Home / 137,743.80-206,615.70-131,911.80

Finding the Fourth Proportional to 137,743.80, 206,615.70 and 131,911.80

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Solution

The fourth proportional to 137,743.80, 206,615.70 and 131,911.80 is: 197,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,743.80 : 206,615.70 = 131,911.80 : x
  2. Step 2: Convert to fraction form
    137,743.80/206,615.70 = 131,911.80/x
  3. Step 3: Cross multiply
    137,743.80x = 206,615.70 × 131,911.80
  4. Step 4: Simplify right side
    137,743.80x = 27,255,048,895.26
  5. Step 5: Solve for x
    x = 27,255,048,895.26/137,743.80
  6. Step 6: Final answer
    x = 197,867.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.