Home / 133,389.06-200,009.72-54,558.64

Finding the Fourth Proportional to 133,389.06, 200,009.72 and 54,558.64

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Solution

The fourth proportional to 133,389.06, 200,009.72 and 54,558.64 is: 81,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,389.06 : 200,009.72 = 54,558.64 : x
  2. Step 2: Convert to fraction form
    133,389.06/200,009.72 = 54,558.64/x
  3. Step 3: Cross multiply
    133,389.06x = 200,009.72 × 54,558.64
  4. Step 4: Simplify right side
    133,389.06x = 10,912,258,309.98
  5. Step 5: Solve for x
    x = 10,912,258,309.98/133,389.06
  6. Step 6: Final answer
    x = 81,807.75

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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.