Home / 133,007.40-183,554.64-72,581.37

Finding the Fourth Proportional to 133,007.40, 183,554.64 and 72,581.37

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Solution

The fourth proportional to 133,007.40, 183,554.64 and 72,581.37 is: 100,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,007.40 : 183,554.64 = 72,581.37 : x
  2. Step 2: Convert to fraction form
    133,007.40/183,554.64 = 72,581.37/x
  3. Step 3: Cross multiply
    133,007.40x = 183,554.64 × 72,581.37
  4. Step 4: Simplify right side
    133,007.40x = 13,322,647,241.06
  5. Step 5: Solve for x
    x = 13,322,647,241.06/133,007.40
  6. Step 6: Final answer
    x = 100,164.71

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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.