Home / 190,633.25-285,763.92-90,766.61

Finding the Fourth Proportional to 190,633.25, 285,763.92 and 90,766.61

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Solution

The fourth proportional to 190,633.25, 285,763.92 and 90,766.61 is: 136,061.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.25 : 285,763.92 = 90,766.61 : x
  2. Step 2: Convert to fraction form
    190,633.25/285,763.92 = 90,766.61/x
  3. Step 3: Cross multiply
    190,633.25x = 285,763.92 × 90,766.61
  4. Step 4: Simplify right side
    190,633.25x = 25,937,820,849.89
  5. Step 5: Solve for x
    x = 25,937,820,849.89/190,633.25
  6. Step 6: Final answer
    x = 136,061.37

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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.