Home / 141,110.86-194,732.40-76,578.70

Finding the Fourth Proportional to 141,110.86, 194,732.40 and 76,578.70

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Solution

The fourth proportional to 141,110.86, 194,732.40 and 76,578.70 is: 105,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,110.86 : 194,732.40 = 76,578.70 : x
  2. Step 2: Convert to fraction form
    141,110.86/194,732.40 = 76,578.70/x
  3. Step 3: Cross multiply
    141,110.86x = 194,732.40 × 76,578.70
  4. Step 4: Simplify right side
    141,110.86x = 14,912,354,039.88
  5. Step 5: Solve for x
    x = 14,912,354,039.88/141,110.86
  6. Step 6: Final answer
    x = 105,678.29

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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.