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Finding the Fourth Proportional to 133,444.98, 200,167.60 and 54,559.20

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Solution

The fourth proportional to 133,444.98, 200,167.60 and 54,559.20 is: 81,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,444.98 : 200,167.60 = 54,559.20 : x
  2. Step 2: Convert to fraction form
    133,444.98/200,167.60 = 54,559.20/x
  3. Step 3: Cross multiply
    133,444.98x = 200,167.60 × 54,559.20
  4. Step 4: Simplify right side
    133,444.98x = 10,920,984,121.92
  5. Step 5: Solve for x
    x = 10,920,984,121.92/133,444.98
  6. Step 6: Final answer
    x = 81,838.85

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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.