Home / 162,383.16-243,408.65-82,272.71

Finding the Fourth Proportional to 162,383.16, 243,408.65 and 82,272.71

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Solution

The fourth proportional to 162,383.16, 243,408.65 and 82,272.71 is: 123,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,383.16 : 243,408.65 = 82,272.71 : x
  2. Step 2: Convert to fraction form
    162,383.16/243,408.65 = 82,272.71/x
  3. Step 3: Cross multiply
    162,383.16x = 243,408.65 × 82,272.71
  4. Step 4: Simplify right side
    162,383.16x = 20,025,889,470.10
  5. Step 5: Solve for x
    x = 20,025,889,470.10/162,383.16
  6. Step 6: Final answer
    x = 123,324.91

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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.