Home / 131,781.77-197,670.90-31,942.86

Finding the Fourth Proportional to 131,781.77, 197,670.90 and 31,942.86

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Solution

The fourth proportional to 131,781.77, 197,670.90 and 31,942.86 is: 47,913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,781.77 : 197,670.90 = 31,942.86 : x
  2. Step 2: Convert to fraction form
    131,781.77/197,670.90 = 31,942.86/x
  3. Step 3: Cross multiply
    131,781.77x = 197,670.90 × 31,942.86
  4. Step 4: Simplify right side
    131,781.77x = 6,314,173,884.77
  5. Step 5: Solve for x
    x = 6,314,173,884.77/131,781.77
  6. Step 6: Final answer
    x = 47,913.87

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1.5x scale

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.