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Finding the Fourth Proportional to 126,520, 174,597.60 and 76,229.44

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Solution

The fourth proportional to 126,520, 174,597.60 and 76,229.44 is: 105,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,520 : 174,597.60 = 76,229.44 : x
  2. Step 2: Convert to fraction form
    126,520/174,597.60 = 76,229.44/x
  3. Step 3: Cross multiply
    126,520x = 174,597.60 × 76,229.44
  4. Step 4: Simplify right side
    126,520x = 13,309,477,273.34
  5. Step 5: Solve for x
    x = 13,309,477,273.34/126,520
  6. Step 6: Final answer
    x = 105,196.63

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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.