Home / 141,200.72-194,858.36-77,539.88

Finding the Fourth Proportional to 141,200.72, 194,858.36 and 77,539.88

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Solution

The fourth proportional to 141,200.72, 194,858.36 and 77,539.88 is: 107,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,200.72 : 194,858.36 = 77,539.88 : x
  2. Step 2: Convert to fraction form
    141,200.72/194,858.36 = 77,539.88/x
  3. Step 3: Cross multiply
    141,200.72x = 194,858.36 × 77,539.88
  4. Step 4: Simplify right side
    141,200.72x = 15,109,294,241.62
  5. Step 5: Solve for x
    x = 15,109,294,241.62/141,200.72
  6. Step 6: Final answer
    x = 107,005.79

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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.