Home / 100,864.56-151,390.24-50,979.76

Finding the Fourth Proportional to 100,864.56, 151,390.24 and 50,979.76

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Solution

The fourth proportional to 100,864.56, 151,390.24 and 50,979.76 is: 76,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,864.56 : 151,390.24 = 50,979.76 : x
  2. Step 2: Convert to fraction form
    100,864.56/151,390.24 = 50,979.76/x
  3. Step 3: Cross multiply
    100,864.56x = 151,390.24 × 50,979.76
  4. Step 4: Simplify right side
    100,864.56x = 7,717,838,101.54
  5. Step 5: Solve for x
    x = 7,717,838,101.54/100,864.56
  6. Step 6: Final answer
    x = 76,516.85

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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.