Home / 252,120.78-347,926.77-137,399.46

Finding the Fourth Proportional to 252,120.78, 347,926.77 and 137,399.46

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Solution

The fourth proportional to 252,120.78, 347,926.77 and 137,399.46 is: 189,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,120.78 : 347,926.77 = 137,399.46 : x
  2. Step 2: Convert to fraction form
    252,120.78/347,926.77 = 137,399.46/x
  3. Step 3: Cross multiply
    252,120.78x = 347,926.77 × 137,399.46
  4. Step 4: Simplify right side
    252,120.78x = 47,804,950,317.54
  5. Step 5: Solve for x
    x = 47,804,950,317.54/252,120.78
  6. Step 6: Final answer
    x = 189,611.31

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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.