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Finding the Fourth Proportional to 141,157.96, 194,813.47 and 80,734.25

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Solution

The fourth proportional to 141,157.96, 194,813.47 and 80,734.25 is: 111,422.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,157.96 : 194,813.47 = 80,734.25 : x
  2. Step 2: Convert to fraction form
    141,157.96/194,813.47 = 80,734.25/x
  3. Step 3: Cross multiply
    141,157.96x = 194,813.47 × 80,734.25
  4. Step 4: Simplify right side
    141,157.96x = 15,728,119,978.30
  5. Step 5: Solve for x
    x = 15,728,119,978.30/141,157.96
  6. Step 6: Final answer
    x = 111,422.13

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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.