Home / 111,711.28-154,293.18-73,919.92

Finding the Fourth Proportional to 111,711.28, 154,293.18 and 73,919.92

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Solution

The fourth proportional to 111,711.28, 154,293.18 and 73,919.92 is: 102,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,711.28 : 154,293.18 = 73,919.92 : x
  2. Step 2: Convert to fraction form
    111,711.28/154,293.18 = 73,919.92/x
  3. Step 3: Cross multiply
    111,711.28x = 154,293.18 × 73,919.92
  4. Step 4: Simplify right side
    111,711.28x = 11,405,339,522.15
  5. Step 5: Solve for x
    x = 11,405,339,522.15/111,711.28
  6. Step 6: Final answer
    x = 102,096.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.