Home / 156,981.94-235,467.64-68,235.44

Finding the Fourth Proportional to 156,981.94, 235,467.64 and 68,235.44

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Solution

The fourth proportional to 156,981.94, 235,467.64 and 68,235.44 is: 102,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.94 : 235,467.64 = 68,235.44 : x
  2. Step 2: Convert to fraction form
    156,981.94/235,467.64 = 68,235.44/x
  3. Step 3: Cross multiply
    156,981.94x = 235,467.64 × 68,235.44
  4. Step 4: Simplify right side
    156,981.94x = 16,067,238,021.16
  5. Step 5: Solve for x
    x = 16,067,238,021.16/156,981.94
  6. Step 6: Final answer
    x = 102,350.87

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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.