Home / 193,743.18-290,606.88-67,412.34

Finding the Fourth Proportional to 193,743.18, 290,606.88 and 67,412.34

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Solution

The fourth proportional to 193,743.18, 290,606.88 and 67,412.34 is: 101,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,743.18 : 290,606.88 = 67,412.34 : x
  2. Step 2: Convert to fraction form
    193,743.18/290,606.88 = 67,412.34/x
  3. Step 3: Cross multiply
    193,743.18x = 290,606.88 × 67,412.34
  4. Step 4: Simplify right side
    193,743.18x = 19,590,489,800.90
  5. Step 5: Solve for x
    x = 19,590,489,800.90/193,743.18
  6. Step 6: Final answer
    x = 101,115.76

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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.