Home / 108,236.71-162,177.54-76,491.69

Finding the Fourth Proportional to 108,236.71, 162,177.54 and 76,491.69

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Solution

The fourth proportional to 108,236.71, 162,177.54 and 76,491.69 is: 114,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,236.71 : 162,177.54 = 76,491.69 : x
  2. Step 2: Convert to fraction form
    108,236.71/162,177.54 = 76,491.69/x
  3. Step 3: Cross multiply
    108,236.71x = 162,177.54 × 76,491.69
  4. Step 4: Simplify right side
    108,236.71x = 12,405,234,562.15
  5. Step 5: Solve for x
    x = 12,405,234,562.15/108,236.71
  6. Step 6: Final answer
    x = 114,612.09

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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.