Home / 141,113.40-194,702.09-79,861

Finding the Fourth Proportional to 141,113.40, 194,702.09 and 79,861

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Solution

The fourth proportional to 141,113.40, 194,702.09 and 79,861 is: 110,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,113.40 : 194,702.09 = 79,861 : x
  2. Step 2: Convert to fraction form
    141,113.40/194,702.09 = 79,861/x
  3. Step 3: Cross multiply
    141,113.40x = 194,702.09 × 79,861
  4. Step 4: Simplify right side
    141,113.40x = 15,549,103,609.49
  5. Step 5: Solve for x
    x = 15,549,103,609.49/141,113.40
  6. Step 6: Final answer
    x = 110,188.71

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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.