Home / 114,961.86-172,442.85-31,855.86

Finding the Fourth Proportional to 114,961.86, 172,442.85 and 31,855.86

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Solution

The fourth proportional to 114,961.86, 172,442.85 and 31,855.86 is: 47,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,961.86 : 172,442.85 = 31,855.86 : x
  2. Step 2: Convert to fraction form
    114,961.86/172,442.85 = 31,855.86/x
  3. Step 3: Cross multiply
    114,961.86x = 172,442.85 × 31,855.86
  4. Step 4: Simplify right side
    114,961.86x = 5,493,315,287.60
  5. Step 5: Solve for x
    x = 5,493,315,287.60/114,961.86
  6. Step 6: Final answer
    x = 47,783.81

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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.