Home / 141,706.92-195,564.40-78,044.70

Finding the Fourth Proportional to 141,706.92, 195,564.40 and 78,044.70

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Solution

The fourth proportional to 141,706.92, 195,564.40 and 78,044.70 is: 107,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,706.92 : 195,564.40 = 78,044.70 : x
  2. Step 2: Convert to fraction form
    141,706.92/195,564.40 = 78,044.70/x
  3. Step 3: Cross multiply
    141,706.92x = 195,564.40 × 78,044.70
  4. Step 4: Simplify right side
    141,706.92x = 15,262,765,466.93
  5. Step 5: Solve for x
    x = 15,262,765,466.93/141,706.92
  6. Step 6: Final answer
    x = 107,706.56

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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.