Home / 141,844.56-195,743.07-78,188.28

Finding the Fourth Proportional to 141,844.56, 195,743.07 and 78,188.28

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Solution

The fourth proportional to 141,844.56, 195,743.07 and 78,188.28 is: 107,898.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,844.56 : 195,743.07 = 78,188.28 : x
  2. Step 2: Convert to fraction form
    141,844.56/195,743.07 = 78,188.28/x
  3. Step 3: Cross multiply
    141,844.56x = 195,743.07 × 78,188.28
  4. Step 4: Simplify right side
    141,844.56x = 15,304,813,965.22
  5. Step 5: Solve for x
    x = 15,304,813,965.22/141,844.56
  6. Step 6: Final answer
    x = 107,898.49

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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.