Home / 115,144.22-172,466.28-55,855.28

Finding the Fourth Proportional to 115,144.22, 172,466.28 and 55,855.28

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Solution

The fourth proportional to 115,144.22, 172,466.28 and 55,855.28 is: 83,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,144.22 : 172,466.28 = 55,855.28 : x
  2. Step 2: Convert to fraction form
    115,144.22/172,466.28 = 55,855.28/x
  3. Step 3: Cross multiply
    115,144.22x = 172,466.28 × 55,855.28
  4. Step 4: Simplify right side
    115,144.22x = 9,633,152,359.96
  5. Step 5: Solve for x
    x = 9,633,152,359.96/115,144.22
  6. Step 6: Final answer
    x = 83,661.62

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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.