Home / 190,418.22-285,667.38-72,086.94

Finding the Fourth Proportional to 190,418.22, 285,667.38 and 72,086.94

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Solution

The fourth proportional to 190,418.22, 285,667.38 and 72,086.94 is: 108,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,418.22 : 285,667.38 = 72,086.94 : x
  2. Step 2: Convert to fraction form
    190,418.22/285,667.38 = 72,086.94/x
  3. Step 3: Cross multiply
    190,418.22x = 285,667.38 × 72,086.94
  4. Step 4: Simplify right side
    190,418.22x = 20,592,887,282.02
  5. Step 5: Solve for x
    x = 20,592,887,282.02/190,418.22
  6. Step 6: Final answer
    x = 108,145.57

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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.