Home / 71,974.37-99,425.07-68,190.86

Finding the Fourth Proportional to 71,974.37, 99,425.07 and 68,190.86

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Solution

The fourth proportional to 71,974.37, 99,425.07 and 68,190.86 is: 94,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,974.37 : 99,425.07 = 68,190.86 : x
  2. Step 2: Convert to fraction form
    71,974.37/99,425.07 = 68,190.86/x
  3. Step 3: Cross multiply
    71,974.37x = 99,425.07 × 68,190.86
  4. Step 4: Simplify right side
    71,974.37x = 6,779,881,277.42
  5. Step 5: Solve for x
    x = 6,779,881,277.42/71,974.37
  6. Step 6: Final answer
    x = 94,198.55

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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.