Home / 190,342.22-285,549.37-76,498.86

Finding the Fourth Proportional to 190,342.22, 285,549.37 and 76,498.86

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Solution

The fourth proportional to 190,342.22, 285,549.37 and 76,498.86 is: 114,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,342.22 : 285,549.37 = 76,498.86 : x
  2. Step 2: Convert to fraction form
    190,342.22/285,549.37 = 76,498.86/x
  3. Step 3: Cross multiply
    190,342.22x = 285,549.37 × 76,498.86
  4. Step 4: Simplify right side
    190,342.22x = 21,844,201,087.47
  5. Step 5: Solve for x
    x = 21,844,201,087.47/190,342.22
  6. Step 6: Final answer
    x = 114,762.78

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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.