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Finding the Fourth Proportional to 133,390.06, 200,011.22 and 54,559.64

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Solution

The fourth proportional to 133,390.06, 200,011.22 and 54,559.64 is: 81,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,390.06 : 200,011.22 = 54,559.64 : x
  2. Step 2: Convert to fraction form
    133,390.06/200,011.22 = 54,559.64/x
  3. Step 3: Cross multiply
    133,390.06x = 200,011.22 × 54,559.64
  4. Step 4: Simplify right side
    133,390.06x = 10,912,540,159.16
  5. Step 5: Solve for x
    x = 10,912,540,159.16/133,390.06
  6. Step 6: Final answer
    x = 81,809.25

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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.