Home / 133,181-183,789.78-76,591.16

Finding the Fourth Proportional to 133,181, 183,789.78 and 76,591.16

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Solution

The fourth proportional to 133,181, 183,789.78 and 76,591.16 is: 105,695.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,181 : 183,789.78 = 76,591.16 : x
  2. Step 2: Convert to fraction form
    133,181/183,789.78 = 76,591.16/x
  3. Step 3: Cross multiply
    133,181x = 183,789.78 × 76,591.16
  4. Step 4: Simplify right side
    133,181x = 14,076,672,446.34
  5. Step 5: Solve for x
    x = 14,076,672,446.34/133,181
  6. Step 6: Final answer
    x = 105,695.80

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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.