Home / 131,540.86-197,340.51-61,381.90

Finding the Fourth Proportional to 131,540.86, 197,340.51 and 61,381.90

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Solution

The fourth proportional to 131,540.86, 197,340.51 and 61,381.90 is: 92,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,540.86 : 197,340.51 = 61,381.90 : x
  2. Step 2: Convert to fraction form
    131,540.86/197,340.51 = 61,381.90/x
  3. Step 3: Cross multiply
    131,540.86x = 197,340.51 × 61,381.90
  4. Step 4: Simplify right side
    131,540.86x = 12,113,135,450.77
  5. Step 5: Solve for x
    x = 12,113,135,450.77/131,540.86
  6. Step 6: Final answer
    x = 92,086.49

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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.