Home / 131,540.36-197,339.76-61,381.40

Finding the Fourth Proportional to 131,540.36, 197,339.76 and 61,381.40

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Solution

The fourth proportional to 131,540.36, 197,339.76 and 61,381.40 is: 92,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,540.36 : 197,339.76 = 61,381.40 : x
  2. Step 2: Convert to fraction form
    131,540.36/197,339.76 = 61,381.40/x
  3. Step 3: Cross multiply
    131,540.36x = 197,339.76 × 61,381.40
  4. Step 4: Simplify right side
    131,540.36x = 12,112,990,744.46
  5. Step 5: Solve for x
    x = 12,112,990,744.46/131,540.36
  6. Step 6: Final answer
    x = 92,085.74

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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.