Home / 131,550.92-197,376.09-78,997.04

Finding the Fourth Proportional to 131,550.92, 197,376.09 and 78,997.04

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Solution

The fourth proportional to 131,550.92, 197,376.09 and 78,997.04 is: 118,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,550.92 : 197,376.09 = 78,997.04 : x
  2. Step 2: Convert to fraction form
    131,550.92/197,376.09 = 78,997.04/x
  3. Step 3: Cross multiply
    131,550.92x = 197,376.09 × 78,997.04
  4. Step 4: Simplify right side
    131,550.92x = 15,592,126,876.77
  5. Step 5: Solve for x
    x = 15,592,126,876.77/131,550.92
  6. Step 6: Final answer
    x = 118,525.41

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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.