Home / 142,289.82-213,443.07-53,544.09

Finding the Fourth Proportional to 142,289.82, 213,443.07 and 53,544.09

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Solution

The fourth proportional to 142,289.82, 213,443.07 and 53,544.09 is: 80,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,289.82 : 213,443.07 = 53,544.09 : x
  2. Step 2: Convert to fraction form
    142,289.82/213,443.07 = 53,544.09/x
  3. Step 3: Cross multiply
    142,289.82x = 213,443.07 × 53,544.09
  4. Step 4: Simplify right side
    142,289.82x = 11,428,614,949.96
  5. Step 5: Solve for x
    x = 11,428,614,949.96/142,289.82
  6. Step 6: Final answer
    x = 80,319.27

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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.