Home / 136,847.01-188,847.09-76,418.73

Finding the Fourth Proportional to 136,847.01, 188,847.09 and 76,418.73

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Solution

The fourth proportional to 136,847.01, 188,847.09 and 76,418.73 is: 105,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,847.01 : 188,847.09 = 76,418.73 : x
  2. Step 2: Convert to fraction form
    136,847.01/188,847.09 = 76,418.73/x
  3. Step 3: Cross multiply
    136,847.01x = 188,847.09 × 76,418.73
  4. Step 4: Simplify right side
    136,847.01x = 14,431,454,782.00
  5. Step 5: Solve for x
    x = 14,431,454,782.00/136,847.01
  6. Step 6: Final answer
    x = 105,456.85

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1.5x scale

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.