Home / 131,540.28-197,339.63-61,381.32

Finding the Fourth Proportional to 131,540.28, 197,339.63 and 61,381.32

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Solution

The fourth proportional to 131,540.28, 197,339.63 and 61,381.32 is: 92,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,540.28 : 197,339.63 = 61,381.32 : x
  2. Step 2: Convert to fraction form
    131,540.28/197,339.63 = 61,381.32/x
  3. Step 3: Cross multiply
    131,540.28x = 197,339.63 × 61,381.32
  4. Step 4: Simplify right side
    131,540.28x = 12,112,965,930.78
  5. Step 5: Solve for x
    x = 12,112,965,930.78/131,540.28
  6. Step 6: Final answer
    x = 92,085.61

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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.