Home / 122,720.78-184,099.62-38,462.21

Finding the Fourth Proportional to 122,720.78, 184,099.62 and 38,462.21

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Solution

The fourth proportional to 122,720.78, 184,099.62 and 38,462.21 is: 57,699.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,720.78 : 184,099.62 = 38,462.21 : x
  2. Step 2: Convert to fraction form
    122,720.78/184,099.62 = 38,462.21/x
  3. Step 3: Cross multiply
    122,720.78x = 184,099.62 × 38,462.21
  4. Step 4: Simplify right side
    122,720.78x = 7,080,877,324.86
  5. Step 5: Solve for x
    x = 7,080,877,324.86/122,720.78
  6. Step 6: Final answer
    x = 57,699.09

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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.