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Finding the Fourth Proportional to 185,157.69, 255,517.05 and 100,274.73

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Solution

The fourth proportional to 185,157.69, 255,517.05 and 100,274.73 is: 138,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,157.69 : 255,517.05 = 100,274.73 : x
  2. Step 2: Convert to fraction form
    185,157.69/255,517.05 = 100,274.73/x
  3. Step 3: Cross multiply
    185,157.69x = 255,517.05 × 100,274.73
  4. Step 4: Simplify right side
    185,157.69x = 25,621,903,199.15
  5. Step 5: Solve for x
    x = 25,621,903,199.15/185,157.69
  6. Step 6: Final answer
    x = 138,378.82

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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.