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Finding the Fourth Proportional to 133,182.03, 183,784.17 and 72,751.80

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Solution

The fourth proportional to 133,182.03, 183,784.17 and 72,751.80 is: 100,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,182.03 : 183,784.17 = 72,751.80 : x
  2. Step 2: Convert to fraction form
    133,182.03/183,784.17 = 72,751.80/x
  3. Step 3: Cross multiply
    133,182.03x = 183,784.17 × 72,751.80
  4. Step 4: Simplify right side
    133,182.03x = 13,370,629,179.01
  5. Step 5: Solve for x
    x = 13,370,629,179.01/133,182.03
  6. Step 6: Final answer
    x = 100,393.64

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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.