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Finding the Fourth Proportional to 147,770.28, 203,922.96 and 80,702.28

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Solution

The fourth proportional to 147,770.28, 203,922.96 and 80,702.28 is: 111,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,770.28 : 203,922.96 = 80,702.28 : x
  2. Step 2: Convert to fraction form
    147,770.28/203,922.96 = 80,702.28/x
  3. Step 3: Cross multiply
    147,770.28x = 203,922.96 × 80,702.28
  4. Step 4: Simplify right side
    147,770.28x = 16,457,047,816.35
  5. Step 5: Solve for x
    x = 16,457,047,816.35/147,770.28
  6. Step 6: Final answer
    x = 111,369.13

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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.