Home / 178,986.70-268,437.66-66,719.62

Finding the Fourth Proportional to 178,986.70, 268,437.66 and 66,719.62

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Solution

The fourth proportional to 178,986.70, 268,437.66 and 66,719.62 is: 100,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,986.70 : 268,437.66 = 66,719.62 : x
  2. Step 2: Convert to fraction form
    178,986.70/268,437.66 = 66,719.62/x
  3. Step 3: Cross multiply
    178,986.70x = 268,437.66 × 66,719.62
  4. Step 4: Simplify right side
    178,986.70x = 17,910,058,668.89
  5. Step 5: Solve for x
    x = 17,910,058,668.89/178,986.70
  6. Step 6: Final answer
    x = 100,063.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.