Home / 141,992.88-195,949.08-78,333.36

Finding the Fourth Proportional to 141,992.88, 195,949.08 and 78,333.36

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Solution

The fourth proportional to 141,992.88, 195,949.08 and 78,333.36 is: 108,099.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,992.88 : 195,949.08 = 78,333.36 : x
  2. Step 2: Convert to fraction form
    141,992.88/195,949.08 = 78,333.36/x
  3. Step 3: Cross multiply
    141,992.88x = 195,949.08 × 78,333.36
  4. Step 4: Simplify right side
    141,992.88x = 15,349,349,825.31
  5. Step 5: Solve for x
    x = 15,349,349,825.31/141,992.88
  6. Step 6: Final answer
    x = 108,099.43

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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.