Home / 142,956.90-214,146.18-68,149.62

Finding the Fourth Proportional to 142,956.90, 214,146.18 and 68,149.62

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Solution

The fourth proportional to 142,956.90, 214,146.18 and 68,149.62 is: 102,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,956.90 : 214,146.18 = 68,149.62 : x
  2. Step 2: Convert to fraction form
    142,956.90/214,146.18 = 68,149.62/x
  3. Step 3: Cross multiply
    142,956.90x = 214,146.18 × 68,149.62
  4. Step 4: Simplify right side
    142,956.90x = 14,593,980,791.45
  5. Step 5: Solve for x
    x = 14,593,980,791.45/142,956.90
  6. Step 6: Final answer
    x = 102,086.58

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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.