Home / 193,659.18-290,503.26-53,416.50

Finding the Fourth Proportional to 193,659.18, 290,503.26 and 53,416.50

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Solution

The fourth proportional to 193,659.18, 290,503.26 and 53,416.50 is: 80,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,659.18 : 290,503.26 = 53,416.50 : x
  2. Step 2: Convert to fraction form
    193,659.18/290,503.26 = 53,416.50/x
  3. Step 3: Cross multiply
    193,659.18x = 290,503.26 × 53,416.50
  4. Step 4: Simplify right side
    193,659.18x = 15,517,667,387.79
  5. Step 5: Solve for x
    x = 15,517,667,387.79/193,659.18
  6. Step 6: Final answer
    x = 80,128.75

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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.