Home / 126,340.45-189,346.78-51,373.33

Finding the Fourth Proportional to 126,340.45, 189,346.78 and 51,373.33

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Solution

The fourth proportional to 126,340.45, 189,346.78 and 51,373.33 is: 76,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,340.45 : 189,346.78 = 51,373.33 : x
  2. Step 2: Convert to fraction form
    126,340.45/189,346.78 = 51,373.33/x
  3. Step 3: Cross multiply
    126,340.45x = 189,346.78 × 51,373.33
  4. Step 4: Simplify right side
    126,340.45x = 9,727,374,613.38
  5. Step 5: Solve for x
    x = 9,727,374,613.38/126,340.45
  6. Step 6: Final answer
    x = 76,993.35

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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.