Home / 115,133.69-172,450.56-55,844.75

Finding the Fourth Proportional to 115,133.69, 172,450.56 and 55,844.75

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Solution

The fourth proportional to 115,133.69, 172,450.56 and 55,844.75 is: 83,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,133.69 : 172,450.56 = 55,844.75 : x
  2. Step 2: Convert to fraction form
    115,133.69/172,450.56 = 55,844.75/x
  3. Step 3: Cross multiply
    115,133.69x = 172,450.56 × 55,844.75
  4. Step 4: Simplify right side
    115,133.69x = 9,630,458,410.56
  5. Step 5: Solve for x
    x = 9,630,458,410.56/115,133.69
  6. Step 6: Final answer
    x = 83,645.88

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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.