Home / 141,834.40-195,732-85,246.72

Finding the Fourth Proportional to 141,834.40, 195,732 and 85,246.72

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Solution

The fourth proportional to 141,834.40, 195,732 and 85,246.72 is: 117,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,834.40 : 195,732 = 85,246.72 : x
  2. Step 2: Convert to fraction form
    141,834.40/195,732 = 85,246.72/x
  3. Step 3: Cross multiply
    141,834.40x = 195,732 × 85,246.72
  4. Step 4: Simplify right side
    141,834.40x = 16,685,510,999.04
  5. Step 5: Solve for x
    x = 16,685,510,999.04/141,834.40
  6. Step 6: Final answer
    x = 117,640.79

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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.