Home / 141,136.86-194,764.53-76,603.05

Finding the Fourth Proportional to 141,136.86, 194,764.53 and 76,603.05

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Solution

The fourth proportional to 141,136.86, 194,764.53 and 76,603.05 is: 105,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,136.86 : 194,764.53 = 76,603.05 : x
  2. Step 2: Convert to fraction form
    141,136.86/194,764.53 = 76,603.05/x
  3. Step 3: Cross multiply
    141,136.86x = 194,764.53 × 76,603.05
  4. Step 4: Simplify right side
    141,136.86x = 14,919,557,317.08
  5. Step 5: Solve for x
    x = 14,919,557,317.08/141,136.86
  6. Step 6: Final answer
    x = 105,709.85

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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.