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Finding the Fourth Proportional to 147,493.35, 203,540.76 and 80,425.35

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Solution

The fourth proportional to 147,493.35, 203,540.76 and 80,425.35 is: 110,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,493.35 : 203,540.76 = 80,425.35 : x
  2. Step 2: Convert to fraction form
    147,493.35/203,540.76 = 80,425.35/x
  3. Step 3: Cross multiply
    147,493.35x = 203,540.76 × 80,425.35
  4. Step 4: Simplify right side
    147,493.35x = 16,369,836,862.27
  5. Step 5: Solve for x
    x = 16,369,836,862.27/147,493.35
  6. Step 6: Final answer
    x = 110,986.95

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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.