Home / 207,905.40-311,785.20-108,032.40

Finding the Fourth Proportional to 207,905.40, 311,785.20 and 108,032.40

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Solution

The fourth proportional to 207,905.40, 311,785.20 and 108,032.40 is: 162,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.40 : 311,785.20 = 108,032.40 : x
  2. Step 2: Convert to fraction form
    207,905.40/311,785.20 = 108,032.40/x
  3. Step 3: Cross multiply
    207,905.40x = 311,785.20 × 108,032.40
  4. Step 4: Simplify right side
    207,905.40x = 33,682,903,440.48
  5. Step 5: Solve for x
    x = 33,682,903,440.48/207,905.40
  6. Step 6: Final answer
    x = 162,010.72

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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.