Home / 131,511.56-196,951-75,180.92

Finding the Fourth Proportional to 131,511.56, 196,951 and 75,180.92

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Solution

The fourth proportional to 131,511.56, 196,951 and 75,180.92 is: 112,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,511.56 : 196,951 = 75,180.92 : x
  2. Step 2: Convert to fraction form
    131,511.56/196,951 = 75,180.92/x
  3. Step 3: Cross multiply
    131,511.56x = 196,951 × 75,180.92
  4. Step 4: Simplify right side
    131,511.56x = 14,806,957,374.92
  5. Step 5: Solve for x
    x = 14,806,957,374.92/131,511.56
  6. Step 6: Final answer
    x = 112,590.54

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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.