Home / 146,789.10-220,183.65-76,659.30

Finding the Fourth Proportional to 146,789.10, 220,183.65 and 76,659.30

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Solution

The fourth proportional to 146,789.10, 220,183.65 and 76,659.30 is: 114,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,789.10 : 220,183.65 = 76,659.30 : x
  2. Step 2: Convert to fraction form
    146,789.10/220,183.65 = 76,659.30/x
  3. Step 3: Cross multiply
    146,789.10x = 220,183.65 × 76,659.30
  4. Step 4: Simplify right side
    146,789.10x = 16,879,124,480.45
  5. Step 5: Solve for x
    x = 16,879,124,480.45/146,789.10
  6. Step 6: Final answer
    x = 114,988.95

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1.5x scale

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.