Home / 143,369.46-197,826.57-79,705.62

Finding the Fourth Proportional to 143,369.46, 197,826.57 and 79,705.62

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Solution

The fourth proportional to 143,369.46, 197,826.57 and 79,705.62 is: 109,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,369.46 : 197,826.57 = 79,705.62 : x
  2. Step 2: Convert to fraction form
    143,369.46/197,826.57 = 79,705.62/x
  3. Step 3: Cross multiply
    143,369.46x = 197,826.57 × 79,705.62
  4. Step 4: Simplify right side
    143,369.46x = 15,767,889,414.32
  5. Step 5: Solve for x
    x = 15,767,889,414.32/143,369.46
  6. Step 6: Final answer
    x = 109,980.81

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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.