Home / 132,839.69-183,313.26-72,409.01

Finding the Fourth Proportional to 132,839.69, 183,313.26 and 72,409.01

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Solution

The fourth proportional to 132,839.69, 183,313.26 and 72,409.01 is: 99,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,839.69 : 183,313.26 = 72,409.01 : x
  2. Step 2: Convert to fraction form
    132,839.69/183,313.26 = 72,409.01/x
  3. Step 3: Cross multiply
    132,839.69x = 183,313.26 × 72,409.01
  4. Step 4: Simplify right side
    132,839.69x = 13,273,530,759.91
  5. Step 5: Solve for x
    x = 13,273,530,759.91/132,839.69
  6. Step 6: Final answer
    x = 99,921.43

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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.