Home / 133,072-183,561.60-82,787.20

Finding the Fourth Proportional to 133,072, 183,561.60 and 82,787.20

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Solution

The fourth proportional to 133,072, 183,561.60 and 82,787.20 is: 114,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072 : 183,561.60 = 82,787.20 : x
  2. Step 2: Convert to fraction form
    133,072/183,561.60 = 82,787.20/x
  3. Step 3: Cross multiply
    133,072x = 183,561.60 × 82,787.20
  4. Step 4: Simplify right side
    133,072x = 15,196,550,891.52
  5. Step 5: Solve for x
    x = 15,196,550,891.52/133,072
  6. Step 6: Final answer
    x = 114,197.96

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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.