Home / 141,768.98-195,640.62-77,238.04

Finding the Fourth Proportional to 141,768.98, 195,640.62 and 77,238.04

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Solution

The fourth proportional to 141,768.98, 195,640.62 and 77,238.04 is: 106,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,768.98 : 195,640.62 = 77,238.04 : x
  2. Step 2: Convert to fraction form
    141,768.98/195,640.62 = 77,238.04/x
  3. Step 3: Cross multiply
    141,768.98x = 195,640.62 × 77,238.04
  4. Step 4: Simplify right side
    141,768.98x = 15,110,897,621.27
  5. Step 5: Solve for x
    x = 15,110,897,621.27/141,768.98
  6. Step 6: Final answer
    x = 106,588.18

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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.