Home / 137,183.96-189,321.21-76,751.00

Finding the Fourth Proportional to 137,183.96, 189,321.21 and 76,751.00

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Solution

The fourth proportional to 137,183.96, 189,321.21 and 76,751.00 is: 105,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,183.96 : 189,321.21 = 76,751.00 : x
  2. Step 2: Convert to fraction form
    137,183.96/189,321.21 = 76,751.00/x
  3. Step 3: Cross multiply
    137,183.96x = 189,321.21 × 76,751.00
  4. Step 4: Simplify right side
    137,183.96x = 14,530,591,242.10
  5. Step 5: Solve for x
    x = 14,530,591,242.10/137,183.96
  6. Step 6: Final answer
    x = 105,920.49

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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.