Home / 141,908.63-195,823.89-78,245.06

Finding the Fourth Proportional to 141,908.63, 195,823.89 and 78,245.06

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Solution

The fourth proportional to 141,908.63, 195,823.89 and 78,245.06 is: 107,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,908.63 : 195,823.89 = 78,245.06 : x
  2. Step 2: Convert to fraction form
    141,908.63/195,823.89 = 78,245.06/x
  3. Step 3: Cross multiply
    141,908.63x = 195,823.89 × 78,245.06
  4. Step 4: Simplify right side
    141,908.63x = 15,322,251,043.36
  5. Step 5: Solve for x
    x = 15,322,251,043.36/141,908.63
  6. Step 6: Final answer
    x = 107,972.66

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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.