Home / 143,429.64-197,930.09-79,766.07

Finding the Fourth Proportional to 143,429.64, 197,930.09 and 79,766.07

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Solution

The fourth proportional to 143,429.64, 197,930.09 and 79,766.07 is: 110,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,429.64 : 197,930.09 = 79,766.07 : x
  2. Step 2: Convert to fraction form
    143,429.64/197,930.09 = 79,766.07/x
  3. Step 3: Cross multiply
    143,429.64x = 197,930.09 × 79,766.07
  4. Step 4: Simplify right side
    143,429.64x = 15,788,105,015.22
  5. Step 5: Solve for x
    x = 15,788,105,015.22/143,429.64
  6. Step 6: Final answer
    x = 110,075.61

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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.