Home / 77,739.94-116,609.37-67,177.81

Finding the Fourth Proportional to 77,739.94, 116,609.37 and 67,177.81

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Solution

The fourth proportional to 77,739.94, 116,609.37 and 67,177.81 is: 100,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,739.94 : 116,609.37 = 67,177.81 : x
  2. Step 2: Convert to fraction form
    77,739.94/116,609.37 = 67,177.81/x
  3. Step 3: Cross multiply
    77,739.94x = 116,609.37 × 67,177.81
  4. Step 4: Simplify right side
    77,739.94x = 7,833,562,102.08
  5. Step 5: Solve for x
    x = 7,833,562,102.08/77,739.94
  6. Step 6: Final answer
    x = 100,766.25

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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.