Home / 142,610.31-213,947.87-76,015.35

Finding the Fourth Proportional to 142,610.31, 213,947.87 and 76,015.35

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Solution

The fourth proportional to 142,610.31, 213,947.87 and 76,015.35 is: 114,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,610.31 : 213,947.87 = 76,015.35 : x
  2. Step 2: Convert to fraction form
    142,610.31/213,947.87 = 76,015.35/x
  3. Step 3: Cross multiply
    142,610.31x = 213,947.87 × 76,015.35
  4. Step 4: Simplify right side
    142,610.31x = 16,263,321,839.73
  5. Step 5: Solve for x
    x = 16,263,321,839.73/142,610.31
  6. Step 6: Final answer
    x = 114,040.30

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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.