Home / 141,724.40-195,579.65-78,062.19

Finding the Fourth Proportional to 141,724.40, 195,579.65 and 78,062.19

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Solution

The fourth proportional to 141,724.40, 195,579.65 and 78,062.19 is: 107,725.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,724.40 : 195,579.65 = 78,062.19 : x
  2. Step 2: Convert to fraction form
    141,724.40/195,579.65 = 78,062.19/x
  3. Step 3: Cross multiply
    141,724.40x = 195,579.65 × 78,062.19
  4. Step 4: Simplify right side
    141,724.40x = 15,267,375,408.12
  5. Step 5: Solve for x
    x = 15,267,375,408.12/141,724.40
  6. Step 6: Final answer
    x = 107,725.81

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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.