Home / 137,828.25-206,791.65-67,756.77

Finding the Fourth Proportional to 137,828.25, 206,791.65 and 67,756.77

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Solution

The fourth proportional to 137,828.25, 206,791.65 and 67,756.77 is: 101,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,828.25 : 206,791.65 = 67,756.77 : x
  2. Step 2: Convert to fraction form
    137,828.25/206,791.65 = 67,756.77/x
  3. Step 3: Cross multiply
    137,828.25x = 206,791.65 × 67,756.77
  4. Step 4: Simplify right side
    137,828.25x = 14,011,534,266.97
  5. Step 5: Solve for x
    x = 14,011,534,266.97/137,828.25
  6. Step 6: Final answer
    x = 101,659.38

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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.