Home / 76,198.86-105,096.69-66,751.02

Finding the Fourth Proportional to 76,198.86, 105,096.69 and 66,751.02

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Solution

The fourth proportional to 76,198.86, 105,096.69 and 66,751.02 is: 92,065.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,198.86 : 105,096.69 = 66,751.02 : x
  2. Step 2: Convert to fraction form
    76,198.86/105,096.69 = 66,751.02/x
  3. Step 3: Cross multiply
    76,198.86x = 105,096.69 × 66,751.02
  4. Step 4: Simplify right side
    76,198.86x = 7,015,311,256.12
  5. Step 5: Solve for x
    x = 7,015,311,256.12/76,198.86
  6. Step 6: Final answer
    x = 92,065.83

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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.