Home / 133,111.44-199,611.72-54,172.08

Finding the Fourth Proportional to 133,111.44, 199,611.72 and 54,172.08

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Solution

The fourth proportional to 133,111.44, 199,611.72 and 54,172.08 is: 81,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,111.44 : 199,611.72 = 54,172.08 : x
  2. Step 2: Convert to fraction form
    133,111.44/199,611.72 = 54,172.08/x
  3. Step 3: Cross multiply
    133,111.44x = 199,611.72 × 54,172.08
  4. Step 4: Simplify right side
    133,111.44x = 10,813,382,064.78
  5. Step 5: Solve for x
    x = 10,813,382,064.78/133,111.44
  6. Step 6: Final answer
    x = 81,235.56

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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.