Home / 126,470.64-189,613.68-73,087.32

Finding the Fourth Proportional to 126,470.64, 189,613.68 and 73,087.32

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Solution

The fourth proportional to 126,470.64, 189,613.68 and 73,087.32 is: 109,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,470.64 : 189,613.68 = 73,087.32 : x
  2. Step 2: Convert to fraction form
    126,470.64/189,613.68 = 73,087.32/x
  3. Step 3: Cross multiply
    126,470.64x = 189,613.68 × 73,087.32
  4. Step 4: Simplify right side
    126,470.64x = 13,858,355,706.54
  5. Step 5: Solve for x
    x = 13,858,355,706.54/126,470.64
  6. Step 6: Final answer
    x = 109,577.65

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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.