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Finding the Fourth Proportional to 133,018.85, 183,571.53 and 75,668.28

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Solution

The fourth proportional to 133,018.85, 183,571.53 and 75,668.28 is: 104,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.85 : 183,571.53 = 75,668.28 : x
  2. Step 2: Convert to fraction form
    133,018.85/183,571.53 = 75,668.28/x
  3. Step 3: Cross multiply
    133,018.85x = 183,571.53 × 75,668.28
  4. Step 4: Simplify right side
    133,018.85x = 13,890,541,237.03
  5. Step 5: Solve for x
    x = 13,890,541,237.03/133,018.85
  6. Step 6: Final answer
    x = 104,425.36

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1.5x scale

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.