Home / 143,051.94-197,382.42-79,376.22

Finding the Fourth Proportional to 143,051.94, 197,382.42 and 79,376.22

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Solution

The fourth proportional to 143,051.94, 197,382.42 and 79,376.22 is: 109,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,051.94 : 197,382.42 = 79,376.22 : x
  2. Step 2: Convert to fraction form
    143,051.94/197,382.42 = 79,376.22/x
  3. Step 3: Cross multiply
    143,051.94x = 197,382.42 × 79,376.22
  4. Step 4: Simplify right side
    143,051.94x = 15,667,470,394.05
  5. Step 5: Solve for x
    x = 15,667,470,394.05/143,051.94
  6. Step 6: Final answer
    x = 109,522.95

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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.