Home / 115,739.25-159,724.70-67,992.18

Finding the Fourth Proportional to 115,739.25, 159,724.70 and 67,992.18

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Solution

The fourth proportional to 115,739.25, 159,724.70 and 67,992.18 is: 93,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,739.25 : 159,724.70 = 67,992.18 : x
  2. Step 2: Convert to fraction form
    115,739.25/159,724.70 = 67,992.18/x
  3. Step 3: Cross multiply
    115,739.25x = 159,724.70 × 67,992.18
  4. Step 4: Simplify right side
    115,739.25x = 10,860,030,212.89
  5. Step 5: Solve for x
    x = 10,860,030,212.89/115,739.25
  6. Step 6: Final answer
    x = 93,831.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.