Home / 207,764.64-311,923.44-109,337.76

Finding the Fourth Proportional to 207,764.64, 311,923.44 and 109,337.76

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Solution

The fourth proportional to 207,764.64, 311,923.44 and 109,337.76 is: 164,152.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,764.64 : 311,923.44 = 109,337.76 : x
  2. Step 2: Convert to fraction form
    207,764.64/311,923.44 = 109,337.76/x
  3. Step 3: Cross multiply
    207,764.64x = 311,923.44 × 109,337.76
  4. Step 4: Simplify right side
    207,764.64x = 34,105,010,221.09
  5. Step 5: Solve for x
    x = 34,105,010,221.09/207,764.64
  6. Step 6: Final answer
    x = 164,152.14

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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.