Home / 188,174.31-281,861.61-127,421.50

Finding the Fourth Proportional to 188,174.31, 281,861.61 and 127,421.50

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Solution

The fourth proportional to 188,174.31, 281,861.61 and 127,421.50 is: 190,861.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,174.31 : 281,861.61 = 127,421.50 : x
  2. Step 2: Convert to fraction form
    188,174.31/281,861.61 = 127,421.50/x
  3. Step 3: Cross multiply
    188,174.31x = 281,861.61 × 127,421.50
  4. Step 4: Simplify right side
    188,174.31x = 35,915,227,729.31
  5. Step 5: Solve for x
    x = 35,915,227,729.31/188,174.31
  6. Step 6: Final answer
    x = 190,861.49

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1.5x scale

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.