Home / 148,847.09-205,408.16-80,863.52

Finding the Fourth Proportional to 148,847.09, 205,408.16 and 80,863.52

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Solution

The fourth proportional to 148,847.09, 205,408.16 and 80,863.52 is: 111,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,847.09 : 205,408.16 = 80,863.52 : x
  2. Step 2: Convert to fraction form
    148,847.09/205,408.16 = 80,863.52/x
  3. Step 3: Cross multiply
    148,847.09x = 205,408.16 × 80,863.52
  4. Step 4: Simplify right side
    148,847.09x = 16,610,026,854.32
  5. Step 5: Solve for x
    x = 16,610,026,854.32/148,847.09
  6. Step 6: Final answer
    x = 111,591.21

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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.