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Finding the Fourth Proportional to 147,648.80, 203,755.28 and 80,580.80

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Solution

The fourth proportional to 147,648.80, 203,755.28 and 80,580.80 is: 111,201.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,648.80 : 203,755.28 = 80,580.80 : x
  2. Step 2: Convert to fraction form
    147,648.80/203,755.28 = 80,580.80/x
  3. Step 3: Cross multiply
    147,648.80x = 203,755.28 × 80,580.80
  4. Step 4: Simplify right side
    147,648.80x = 16,418,763,466.62
  5. Step 5: Solve for x
    x = 16,418,763,466.62/147,648.80
  6. Step 6: Final answer
    x = 111,201.47

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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.