Home / 133,885.09-200,828.30-45,139.36

Finding the Fourth Proportional to 133,885.09, 200,828.30 and 45,139.36

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Solution

The fourth proportional to 133,885.09, 200,828.30 and 45,139.36 is: 67,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,885.09 : 200,828.30 = 45,139.36 : x
  2. Step 2: Convert to fraction form
    133,885.09/200,828.30 = 45,139.36/x
  3. Step 3: Cross multiply
    133,885.09x = 200,828.30 × 45,139.36
  4. Step 4: Simplify right side
    133,885.09x = 9,065,260,961.54
  5. Step 5: Solve for x
    x = 9,065,260,961.54/133,885.09
  6. Step 6: Final answer
    x = 67,709.27

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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.