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Finding the Fourth Proportional to 126,843.60, 190,287.22 and 42,611.80

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Solution

The fourth proportional to 126,843.60, 190,287.22 and 42,611.80 is: 63,925.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.60 : 190,287.22 = 42,611.80 : x
  2. Step 2: Convert to fraction form
    126,843.60/190,287.22 = 42,611.80/x
  3. Step 3: Cross multiply
    126,843.60x = 190,287.22 × 42,611.80
  4. Step 4: Simplify right side
    126,843.60x = 8,108,480,961.20
  5. Step 5: Solve for x
    x = 8,108,480,961.20/126,843.60
  6. Step 6: Final answer
    x = 63,925.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.