Home / 142,986.51-214,340.31-68,086.53

Finding the Fourth Proportional to 142,986.51, 214,340.31 and 68,086.53

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Solution

The fourth proportional to 142,986.51, 214,340.31 and 68,086.53 is: 102,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,986.51 : 214,340.31 = 68,086.53 : x
  2. Step 2: Convert to fraction form
    142,986.51/214,340.31 = 68,086.53/x
  3. Step 3: Cross multiply
    142,986.51x = 214,340.31 × 68,086.53
  4. Step 4: Simplify right side
    142,986.51x = 14,593,687,947.02
  5. Step 5: Solve for x
    x = 14,593,687,947.02/142,986.51
  6. Step 6: Final answer
    x = 102,063.39

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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.