Home / 142,986.36-214,481.14-43,147.50

Finding the Fourth Proportional to 142,986.36, 214,481.14 and 43,147.50

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Solution

The fourth proportional to 142,986.36, 214,481.14 and 43,147.50 is: 64,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,986.36 : 214,481.14 = 43,147.50 : x
  2. Step 2: Convert to fraction form
    142,986.36/214,481.14 = 43,147.50/x
  3. Step 3: Cross multiply
    142,986.36x = 214,481.14 × 43,147.50
  4. Step 4: Simplify right side
    142,986.36x = 9,254,324,988.15
  5. Step 5: Solve for x
    x = 9,254,324,988.15/142,986.36
  6. Step 6: Final answer
    x = 64,721.73

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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.