Home / 156,911.94-235,343.10-68,141.61

Finding the Fourth Proportional to 156,911.94, 235,343.10 and 68,141.61

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Solution

The fourth proportional to 156,911.94, 235,343.10 and 68,141.61 is: 102,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,911.94 : 235,343.10 = 68,141.61 : x
  2. Step 2: Convert to fraction form
    156,911.94/235,343.10 = 68,141.61/x
  3. Step 3: Cross multiply
    156,911.94x = 235,343.10 × 68,141.61
  4. Step 4: Simplify right side
    156,911.94x = 16,036,657,736.39
  5. Step 5: Solve for x
    x = 16,036,657,736.39/156,911.94
  6. Step 6: Final answer
    x = 102,201.64

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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.