Home / 156,839.05-235,126.31-68,025.69

Finding the Fourth Proportional to 156,839.05, 235,126.31 and 68,025.69

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Solution

The fourth proportional to 156,839.05, 235,126.31 and 68,025.69 is: 101,981.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,839.05 : 235,126.31 = 68,025.69 : x
  2. Step 2: Convert to fraction form
    156,839.05/235,126.31 = 68,025.69/x
  3. Step 3: Cross multiply
    156,839.05x = 235,126.31 × 68,025.69
  4. Step 4: Simplify right side
    156,839.05x = 15,994,629,134.78
  5. Step 5: Solve for x
    x = 15,994,629,134.78/156,839.05
  6. Step 6: Final answer
    x = 101,981.16

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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.