Home / 123,134.48-184,712.20-38,872.10

Finding the Fourth Proportional to 123,134.48, 184,712.20 and 38,872.10

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Solution

The fourth proportional to 123,134.48, 184,712.20 and 38,872.10 is: 58,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,134.48 : 184,712.20 = 38,872.10 : x
  2. Step 2: Convert to fraction form
    123,134.48/184,712.20 = 38,872.10/x
  3. Step 3: Cross multiply
    123,134.48x = 184,712.20 × 38,872.10
  4. Step 4: Simplify right side
    123,134.48x = 7,180,150,915.26
  5. Step 5: Solve for x
    x = 7,180,150,915.26/123,134.48
  6. Step 6: Final answer
    x = 58,311.46

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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.