Home / 141,858.22-195,782.08-81,447.80

Finding the Fourth Proportional to 141,858.22, 195,782.08 and 81,447.80

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Solution

The fourth proportional to 141,858.22, 195,782.08 and 81,447.80 is: 112,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,858.22 : 195,782.08 = 81,447.80 : x
  2. Step 2: Convert to fraction form
    141,858.22/195,782.08 = 81,447.80/x
  3. Step 3: Cross multiply
    141,858.22x = 195,782.08 × 81,447.80
  4. Step 4: Simplify right side
    141,858.22x = 15,946,019,695.42
  5. Step 5: Solve for x
    x = 15,946,019,695.42/141,858.22
  6. Step 6: Final answer
    x = 112,408.15

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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.