Home / 190,301.84-285,238.92-90,380.24

Finding the Fourth Proportional to 190,301.84, 285,238.92 and 90,380.24

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Solution

The fourth proportional to 190,301.84, 285,238.92 and 90,380.24 is: 135,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,301.84 : 285,238.92 = 90,380.24 : x
  2. Step 2: Convert to fraction form
    190,301.84/285,238.92 = 90,380.24/x
  3. Step 3: Cross multiply
    190,301.84x = 285,238.92 × 90,380.24
  4. Step 4: Simplify right side
    190,301.84x = 25,779,962,046.94
  5. Step 5: Solve for x
    x = 25,779,962,046.94/190,301.84
  6. Step 6: Final answer
    x = 135,468.80

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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.