Home / 141,479.36-195,241.12-77,817.92

Finding the Fourth Proportional to 141,479.36, 195,241.12 and 77,817.92

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Solution

The fourth proportional to 141,479.36, 195,241.12 and 77,817.92 is: 107,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,479.36 : 195,241.12 = 77,817.92 : x
  2. Step 2: Convert to fraction form
    141,479.36/195,241.12 = 77,817.92/x
  3. Step 3: Cross multiply
    141,479.36x = 195,241.12 × 77,817.92
  4. Step 4: Simplify right side
    141,479.36x = 15,193,257,856.87
  5. Step 5: Solve for x
    x = 15,193,257,856.87/141,479.36
  6. Step 6: Final answer
    x = 107,388.51

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1.5x scale

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.