Home / 126,884.40-190,311.76-50,979.86

Finding the Fourth Proportional to 126,884.40, 190,311.76 and 50,979.86

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Solution

The fourth proportional to 126,884.40, 190,311.76 and 50,979.86 is: 76,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,884.40 : 190,311.76 = 50,979.86 : x
  2. Step 2: Convert to fraction form
    126,884.40/190,311.76 = 50,979.86/x
  3. Step 3: Cross multiply
    126,884.40x = 190,311.76 × 50,979.86
  4. Step 4: Simplify right side
    126,884.40x = 9,702,066,881.15
  5. Step 5: Solve for x
    x = 9,702,066,881.15/126,884.40
  6. Step 6: Final answer
    x = 76,463.83

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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.