Home / 141,989.56-195,946.14-78,326.44

Finding the Fourth Proportional to 141,989.56, 195,946.14 and 78,326.44

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Solution

The fourth proportional to 141,989.56, 195,946.14 and 78,326.44 is: 108,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,989.56 : 195,946.14 = 78,326.44 : x
  2. Step 2: Convert to fraction form
    141,989.56/195,946.14 = 78,326.44/x
  3. Step 3: Cross multiply
    141,989.56x = 195,946.14 × 78,326.44
  4. Step 4: Simplify right side
    141,989.56x = 15,347,763,577.94
  5. Step 5: Solve for x
    x = 15,347,763,577.94/141,989.56
  6. Step 6: Final answer
    x = 108,090.79

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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.