Home / 141,820.61-195,712.44-85,231.98

Finding the Fourth Proportional to 141,820.61, 195,712.44 and 85,231.98

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Solution

The fourth proportional to 141,820.61, 195,712.44 and 85,231.98 is: 117,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,820.61 : 195,712.44 = 85,231.98 : x
  2. Step 2: Convert to fraction form
    141,820.61/195,712.44 = 85,231.98/x
  3. Step 3: Cross multiply
    141,820.61x = 195,712.44 × 85,231.98
  4. Step 4: Simplify right side
    141,820.61x = 16,680,958,771.83
  5. Step 5: Solve for x
    x = 16,680,958,771.83/141,820.61
  6. Step 6: Final answer
    x = 117,620.13

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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.