Home / 156,965.12-235,442.39-68,218.64

Finding the Fourth Proportional to 156,965.12, 235,442.39 and 68,218.64

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Solution

The fourth proportional to 156,965.12, 235,442.39 and 68,218.64 is: 102,325.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.12 : 235,442.39 = 68,218.64 : x
  2. Step 2: Convert to fraction form
    156,965.12/235,442.39 = 68,218.64/x
  3. Step 3: Cross multiply
    156,965.12x = 235,442.39 × 68,218.64
  4. Step 4: Simplify right side
    156,965.12x = 16,061,558,466.94
  5. Step 5: Solve for x
    x = 16,061,558,466.94/156,965.12
  6. Step 6: Final answer
    x = 102,325.65

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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.