Home / 141,985.62-195,940.18-78,323.58

Finding the Fourth Proportional to 141,985.62, 195,940.18 and 78,323.58

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Solution

The fourth proportional to 141,985.62, 195,940.18 and 78,323.58 is: 108,086.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,985.62 : 195,940.18 = 78,323.58 : x
  2. Step 2: Convert to fraction form
    141,985.62/195,940.18 = 78,323.58/x
  3. Step 3: Cross multiply
    141,985.62x = 195,940.18 × 78,323.58
  4. Step 4: Simplify right side
    141,985.62x = 15,346,736,363.44
  5. Step 5: Solve for x
    x = 15,346,736,363.44/141,985.62
  6. Step 6: Final answer
    x = 108,086.55

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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.