Home / 141,819.44-195,712.16-78,159.56

Finding the Fourth Proportional to 141,819.44, 195,712.16 and 78,159.56

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Solution

The fourth proportional to 141,819.44, 195,712.16 and 78,159.56 is: 107,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.44 : 195,712.16 = 78,159.56 : x
  2. Step 2: Convert to fraction form
    141,819.44/195,712.16 = 78,159.56/x
  3. Step 3: Cross multiply
    141,819.44x = 195,712.16 × 78,159.56
  4. Step 4: Simplify right side
    141,819.44x = 15,296,776,312.25
  5. Step 5: Solve for x
    x = 15,296,776,312.25/141,819.44
  6. Step 6: Final answer
    x = 107,860.93

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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.