Home / 141,819.06-195,709.32-78,156.94

Finding the Fourth Proportional to 141,819.06, 195,709.32 and 78,156.94

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Solution

The fourth proportional to 141,819.06, 195,709.32 and 78,156.94 is: 107,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.06 : 195,709.32 = 78,156.94 : x
  2. Step 2: Convert to fraction form
    141,819.06/195,709.32 = 78,156.94/x
  3. Step 3: Cross multiply
    141,819.06x = 195,709.32 × 78,156.94
  4. Step 4: Simplify right side
    141,819.06x = 15,296,041,580.68
  5. Step 5: Solve for x
    x = 15,296,041,580.68/141,819.06
  6. Step 6: Final answer
    x = 107,856.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.