Home / 141,390.97-195,123.26-76,864.54

Finding the Fourth Proportional to 141,390.97, 195,123.26 and 76,864.54

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Solution

The fourth proportional to 141,390.97, 195,123.26 and 76,864.54 is: 106,075.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,390.97 : 195,123.26 = 76,864.54 : x
  2. Step 2: Convert to fraction form
    141,390.97/195,123.26 = 76,864.54/x
  3. Step 3: Cross multiply
    141,390.97x = 195,123.26 × 76,864.54
  4. Step 4: Simplify right side
    141,390.97x = 14,998,059,623.20
  5. Step 5: Solve for x
    x = 14,998,059,623.20/141,390.97
  6. Step 6: Final answer
    x = 106,075.09

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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.