Home / 148,682.85-205,176.84-80,698.36

Finding the Fourth Proportional to 148,682.85, 205,176.84 and 80,698.36

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Solution

The fourth proportional to 148,682.85, 205,176.84 and 80,698.36 is: 111,360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,682.85 : 205,176.84 = 80,698.36 : x
  2. Step 2: Convert to fraction form
    148,682.85/205,176.84 = 80,698.36/x
  3. Step 3: Cross multiply
    148,682.85x = 205,176.84 × 80,698.36
  4. Step 4: Simplify right side
    148,682.85x = 16,557,434,497.98
  5. Step 5: Solve for x
    x = 16,557,434,497.98/148,682.85
  6. Step 6: Final answer
    x = 111,360.76

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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.