Home / 143,055.45-214,583.22-54,287.91

Finding the Fourth Proportional to 143,055.45, 214,583.22 and 54,287.91

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Solution

The fourth proportional to 143,055.45, 214,583.22 and 54,287.91 is: 81,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,055.45 : 214,583.22 = 54,287.91 : x
  2. Step 2: Convert to fraction form
    143,055.45/214,583.22 = 54,287.91/x
  3. Step 3: Cross multiply
    143,055.45x = 214,583.22 × 54,287.91
  4. Step 4: Simplify right side
    143,055.45x = 11,649,274,534.87
  5. Step 5: Solve for x
    x = 11,649,274,534.87/143,055.45
  6. Step 6: Final answer
    x = 81,431.88

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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.