Home / 156,905.20-235,423.42-68,233.30

Finding the Fourth Proportional to 156,905.20, 235,423.42 and 68,233.30

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Solution

The fourth proportional to 156,905.20, 235,423.42 and 68,233.30 is: 102,378.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,905.20 : 235,423.42 = 68,233.30 : x
  2. Step 2: Convert to fraction form
    156,905.20/235,423.42 = 68,233.30/x
  3. Step 3: Cross multiply
    156,905.20x = 235,423.42 × 68,233.30
  4. Step 4: Simplify right side
    156,905.20x = 16,063,716,843.89
  5. Step 5: Solve for x
    x = 16,063,716,843.89/156,905.20
  6. Step 6: Final answer
    x = 102,378.49

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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.