Home / 141,828.06-195,721.74-78,165.96

Finding the Fourth Proportional to 141,828.06, 195,721.74 and 78,165.96

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Solution

The fourth proportional to 141,828.06, 195,721.74 and 78,165.96 is: 107,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,828.06 : 195,721.74 = 78,165.96 : x
  2. Step 2: Convert to fraction form
    141,828.06/195,721.74 = 78,165.96/x
  3. Step 3: Cross multiply
    141,828.06x = 195,721.74 × 78,165.96
  4. Step 4: Simplify right side
    141,828.06x = 15,298,777,699.97
  5. Step 5: Solve for x
    x = 15,298,777,699.97/141,828.06
  6. Step 6: Final answer
    x = 107,868.48

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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.