Home / 137,203.84-206,150.16-87,305.60

Finding the Fourth Proportional to 137,203.84, 206,150.16 and 87,305.60

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Solution

The fourth proportional to 137,203.84, 206,150.16 and 87,305.60 is: 131,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,203.84 : 206,150.16 = 87,305.60 : x
  2. Step 2: Convert to fraction form
    137,203.84/206,150.16 = 87,305.60/x
  3. Step 3: Cross multiply
    137,203.84x = 206,150.16 × 87,305.60
  4. Step 4: Simplify right side
    137,203.84x = 17,998,063,408.90
  5. Step 5: Solve for x
    x = 17,998,063,408.90/137,203.84
  6. Step 6: Final answer
    x = 131,177.55

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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.