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Finding the Fourth Proportional to 141,055.86, 194,657.08 and 80,627.80

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Solution

The fourth proportional to 141,055.86, 194,657.08 and 80,627.80 is: 111,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,055.86 : 194,657.08 = 80,627.80 : x
  2. Step 2: Convert to fraction form
    141,055.86/194,657.08 = 80,627.80/x
  3. Step 3: Cross multiply
    141,055.86x = 194,657.08 × 80,627.80
  4. Step 4: Simplify right side
    141,055.86x = 15,694,772,114.82
  5. Step 5: Solve for x
    x = 15,694,772,114.82/141,055.86
  6. Step 6: Final answer
    x = 111,266.36

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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.