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Finding the Fourth Proportional to 133,007.52, 183,554.81 and 72,581.48

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Solution

The fourth proportional to 133,007.52, 183,554.81 and 72,581.48 is: 100,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,007.52 : 183,554.81 = 72,581.48 : x
  2. Step 2: Convert to fraction form
    133,007.52/183,554.81 = 72,581.48/x
  3. Step 3: Cross multiply
    133,007.52x = 183,554.81 × 72,581.48
  4. Step 4: Simplify right side
    133,007.52x = 13,322,678,490.24
  5. Step 5: Solve for x
    x = 13,322,678,490.24/133,007.52
  6. Step 6: Final answer
    x = 100,164.85

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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.