Home / 143,031.09-214,664.66-71,973.92

Finding the Fourth Proportional to 143,031.09, 214,664.66 and 71,973.92

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Solution

The fourth proportional to 143,031.09, 214,664.66 and 71,973.92 is: 108,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,031.09 : 214,664.66 = 71,973.92 : x
  2. Step 2: Convert to fraction form
    143,031.09/214,664.66 = 71,973.92/x
  3. Step 3: Cross multiply
    143,031.09x = 214,664.66 × 71,973.92
  4. Step 4: Simplify right side
    143,031.09x = 15,450,257,512.36
  5. Step 5: Solve for x
    x = 15,450,257,512.36/143,031.09
  6. Step 6: Final answer
    x = 108,020.27

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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.