Home / 133,006.40-183,553.26-72,580.37

Finding the Fourth Proportional to 133,006.40, 183,553.26 and 72,580.37

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Solution

The fourth proportional to 133,006.40, 183,553.26 and 72,580.37 is: 100,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,006.40 : 183,553.26 = 72,580.37 : x
  2. Step 2: Convert to fraction form
    133,006.40/183,553.26 = 72,580.37/x
  3. Step 3: Cross multiply
    133,006.40x = 183,553.26 × 72,580.37
  4. Step 4: Simplify right side
    133,006.40x = 13,322,362,607.74
  5. Step 5: Solve for x
    x = 13,322,362,607.74/133,006.40
  6. Step 6: Final answer
    x = 100,163.32

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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.