Home / 133,080.54-183,651.22-76,491.78

Finding the Fourth Proportional to 133,080.54, 183,651.22 and 76,491.78

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Solution

The fourth proportional to 133,080.54, 183,651.22 and 76,491.78 is: 105,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,080.54 : 183,651.22 = 76,491.78 : x
  2. Step 2: Convert to fraction form
    133,080.54/183,651.22 = 76,491.78/x
  3. Step 3: Cross multiply
    133,080.54x = 183,651.22 × 76,491.78
  4. Step 4: Simplify right side
    133,080.54x = 14,047,808,716.97
  5. Step 5: Solve for x
    x = 14,047,808,716.97/133,080.54
  6. Step 6: Final answer
    x = 105,558.70

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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.