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Finding the Fourth Proportional to 141,321.81, 195,014.92 and 80,892.93

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Solution

The fourth proportional to 141,321.81, 195,014.92 and 80,892.93 is: 111,626.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,321.81 : 195,014.92 = 80,892.93 : x
  2. Step 2: Convert to fraction form
    141,321.81/195,014.92 = 80,892.93/x
  3. Step 3: Cross multiply
    141,321.81x = 195,014.92 × 80,892.93
  4. Step 4: Simplify right side
    141,321.81x = 15,775,328,272.52
  5. Step 5: Solve for x
    x = 15,775,328,272.52/141,321.81
  6. Step 6: Final answer
    x = 111,626.99

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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.