Home / 141,988.88-195,943.56-78,329.36

Finding the Fourth Proportional to 141,988.88, 195,943.56 and 78,329.36

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Solution

The fourth proportional to 141,988.88, 195,943.56 and 78,329.36 is: 108,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,988.88 : 195,943.56 = 78,329.36 : x
  2. Step 2: Convert to fraction form
    141,988.88/195,943.56 = 78,329.36/x
  3. Step 3: Cross multiply
    141,988.88x = 195,943.56 × 78,329.36
  4. Step 4: Simplify right side
    141,988.88x = 15,348,133,650.92
  5. Step 5: Solve for x
    x = 15,348,133,650.92/141,988.88
  6. Step 6: Final answer
    x = 108,093.91

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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.