Home / 123,321.48-184,987.36-39,079.78

Finding the Fourth Proportional to 123,321.48, 184,987.36 and 39,079.78

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Solution

The fourth proportional to 123,321.48, 184,987.36 and 39,079.78 is: 58,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,321.48 : 184,987.36 = 39,079.78 : x
  2. Step 2: Convert to fraction form
    123,321.48/184,987.36 = 39,079.78/x
  3. Step 3: Cross multiply
    123,321.48x = 184,987.36 × 39,079.78
  4. Step 4: Simplify right side
    123,321.48x = 7,229,264,917.96
  5. Step 5: Solve for x
    x = 7,229,264,917.96/123,321.48
  6. Step 6: Final answer
    x = 58,621.30

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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.