Home / 81,866.08-122,727.30-67,941.64

Finding the Fourth Proportional to 81,866.08, 122,727.30 and 67,941.64

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Solution

The fourth proportional to 81,866.08, 122,727.30 and 67,941.64 is: 101,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,866.08 : 122,727.30 = 67,941.64 : x
  2. Step 2: Convert to fraction form
    81,866.08/122,727.30 = 67,941.64/x
  3. Step 3: Cross multiply
    81,866.08x = 122,727.30 × 67,941.64
  4. Step 4: Simplify right side
    81,866.08x = 8,338,294,034.77
  5. Step 5: Solve for x
    x = 8,338,294,034.77/81,866.08
  6. Step 6: Final answer
    x = 101,852.86

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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.