Home / 107,621.10-161,431.82-51,448.02

Finding the Fourth Proportional to 107,621.10, 161,431.82 and 51,448.02

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Solution

The fourth proportional to 107,621.10, 161,431.82 and 51,448.02 is: 77,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,621.10 : 161,431.82 = 51,448.02 : x
  2. Step 2: Convert to fraction form
    107,621.10/161,431.82 = 51,448.02/x
  3. Step 3: Cross multiply
    107,621.10x = 161,431.82 × 51,448.02
  4. Step 4: Simplify right side
    107,621.10x = 8,305,347,504.00
  5. Step 5: Solve for x
    x = 8,305,347,504.00/107,621.10
  6. Step 6: Final answer
    x = 77,172.11

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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.