Home / 115,134.69-172,452.06-55,845.75

Finding the Fourth Proportional to 115,134.69, 172,452.06 and 55,845.75

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Solution

The fourth proportional to 115,134.69, 172,452.06 and 55,845.75 is: 83,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,134.69 : 172,452.06 = 55,845.75 : x
  2. Step 2: Convert to fraction form
    115,134.69/172,452.06 = 55,845.75/x
  3. Step 3: Cross multiply
    115,134.69x = 172,452.06 × 55,845.75
  4. Step 4: Simplify right side
    115,134.69x = 9,630,714,629.75
  5. Step 5: Solve for x
    x = 9,630,714,629.75/115,134.69
  6. Step 6: Final answer
    x = 83,647.38

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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.