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Finding the Fourth Proportional to 133,408.20, 200,043.90 and 39,901.80

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Solution

The fourth proportional to 133,408.20, 200,043.90 and 39,901.80 is: 59,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,408.20 : 200,043.90 = 39,901.80 : x
  2. Step 2: Convert to fraction form
    133,408.20/200,043.90 = 39,901.80/x
  3. Step 3: Cross multiply
    133,408.20x = 200,043.90 × 39,901.80
  4. Step 4: Simplify right side
    133,408.20x = 7,982,111,689.02
  5. Step 5: Solve for x
    x = 7,982,111,689.02/133,408.20
  6. Step 6: Final answer
    x = 59,832.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.