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Finding the Fourth Proportional to 133,029.66, 183,583.83 and 72,600.54

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Solution

The fourth proportional to 133,029.66, 183,583.83 and 72,600.54 is: 100,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,029.66 : 183,583.83 = 72,600.54 : x
  2. Step 2: Convert to fraction form
    133,029.66/183,583.83 = 72,600.54/x
  3. Step 3: Cross multiply
    133,029.66x = 183,583.83 × 72,600.54
  4. Step 4: Simplify right side
    133,029.66x = 13,328,285,193.27
  5. Step 5: Solve for x
    x = 13,328,285,193.27/133,029.66
  6. Step 6: Final answer
    x = 100,190.33

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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.