Home / 156,961.10-235,441.65-68,314.70

Finding the Fourth Proportional to 156,961.10, 235,441.65 and 68,314.70

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Solution

The fourth proportional to 156,961.10, 235,441.65 and 68,314.70 is: 102,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.10 : 235,441.65 = 68,314.70 : x
  2. Step 2: Convert to fraction form
    156,961.10/235,441.65 = 68,314.70/x
  3. Step 3: Cross multiply
    156,961.10x = 235,441.65 × 68,314.70
  4. Step 4: Simplify right side
    156,961.10x = 16,084,125,687.26
  5. Step 5: Solve for x
    x = 16,084,125,687.26/156,961.10
  6. Step 6: Final answer
    x = 102,472.05

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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.