Home / 189,021.72-283,427.78-75,053.96

Finding the Fourth Proportional to 189,021.72, 283,427.78 and 75,053.96

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Solution

The fourth proportional to 189,021.72, 283,427.78 and 75,053.96 is: 112,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,021.72 : 283,427.78 = 75,053.96 : x
  2. Step 2: Convert to fraction form
    189,021.72/283,427.78 = 75,053.96/x
  3. Step 3: Cross multiply
    189,021.72x = 283,427.78 × 75,053.96
  4. Step 4: Simplify right side
    189,021.72x = 21,272,375,470.60
  5. Step 5: Solve for x
    x = 21,272,375,470.60/189,021.72
  6. Step 6: Final answer
    x = 112,539.32

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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.