Home / 137,135.30-188,825.99-120,043.89

Finding the Fourth Proportional to 137,135.30, 188,825.99 and 120,043.89

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Solution

The fourth proportional to 137,135.30, 188,825.99 and 120,043.89 is: 165,292.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,135.30 : 188,825.99 = 120,043.89 : x
  2. Step 2: Convert to fraction form
    137,135.30/188,825.99 = 120,043.89/x
  3. Step 3: Cross multiply
    137,135.30x = 188,825.99 × 120,043.89
  4. Step 4: Simplify right side
    137,135.30x = 22,667,405,772.48
  5. Step 5: Solve for x
    x = 22,667,405,772.48/137,135.30
  6. Step 6: Final answer
    x = 165,292.28

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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.