Home / 156,961.80-235,482.39-68,231.16

Finding the Fourth Proportional to 156,961.80, 235,482.39 and 68,231.16

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Solution

The fourth proportional to 156,961.80, 235,482.39 and 68,231.16 is: 102,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.80 : 235,482.39 = 68,231.16 : x
  2. Step 2: Convert to fraction form
    156,961.80/235,482.39 = 68,231.16/x
  3. Step 3: Cross multiply
    156,961.80x = 235,482.39 × 68,231.16
  4. Step 4: Simplify right side
    156,961.80x = 16,067,236,629.27
  5. Step 5: Solve for x
    x = 16,067,236,629.27/156,961.80
  6. Step 6: Final answer
    x = 102,363.99

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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.