Home / 190,632.25-285,762.42-90,765.61

Finding the Fourth Proportional to 190,632.25, 285,762.42 and 90,765.61

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Solution

The fourth proportional to 190,632.25, 285,762.42 and 90,765.61 is: 136,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,632.25 : 285,762.42 = 90,765.61 : x
  2. Step 2: Convert to fraction form
    190,632.25/285,762.42 = 90,765.61/x
  3. Step 3: Cross multiply
    190,632.25x = 285,762.42 × 90,765.61
  4. Step 4: Simplify right side
    190,632.25x = 25,937,398,937.56
  5. Step 5: Solve for x
    x = 25,937,398,937.56/190,632.25
  6. Step 6: Final answer
    x = 136,059.87

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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.