Home / 99,531.06-149,273.37-57,321.42

Finding the Fourth Proportional to 99,531.06, 149,273.37 and 57,321.42

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Solution

The fourth proportional to 99,531.06, 149,273.37 and 57,321.42 is: 85,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,531.06 : 149,273.37 = 57,321.42 : x
  2. Step 2: Convert to fraction form
    99,531.06/149,273.37 = 57,321.42/x
  3. Step 3: Cross multiply
    99,531.06x = 149,273.37 × 57,321.42
  4. Step 4: Simplify right side
    99,531.06x = 8,556,561,536.59
  5. Step 5: Solve for x
    x = 8,556,561,536.59/99,531.06
  6. Step 6: Final answer
    x = 85,968.76

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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.