Home / 136,865.20-205,029.96-122,004.40

Finding the Fourth Proportional to 136,865.20, 205,029.96 and 122,004.40

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Solution

The fourth proportional to 136,865.20, 205,029.96 and 122,004.40 is: 182,767.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,865.20 : 205,029.96 = 122,004.40 : x
  2. Step 2: Convert to fraction form
    136,865.20/205,029.96 = 122,004.40/x
  3. Step 3: Cross multiply
    136,865.20x = 205,029.96 × 122,004.40
  4. Step 4: Simplify right side
    136,865.20x = 25,014,557,251.82
  5. Step 5: Solve for x
    x = 25,014,557,251.82/136,865.20
  6. Step 6: Final answer
    x = 182,767.84

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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.