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Finding the Fourth Proportional to 147,608.34, 203,701.86 and 80,540.34

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Solution

The fourth proportional to 147,608.34, 203,701.86 and 80,540.34 is: 111,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,608.34 : 203,701.86 = 80,540.34 : x
  2. Step 2: Convert to fraction form
    147,608.34/203,701.86 = 80,540.34/x
  3. Step 3: Cross multiply
    147,608.34x = 203,701.86 × 80,540.34
  4. Step 4: Simplify right side
    147,608.34x = 16,406,217,063.03
  5. Step 5: Solve for x
    x = 16,406,217,063.03/147,608.34
  6. Step 6: Final answer
    x = 111,146.95

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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.