Home / 143,429.27-197,929.58-79,765.70

Finding the Fourth Proportional to 143,429.27, 197,929.58 and 79,765.70

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Solution

The fourth proportional to 143,429.27, 197,929.58 and 79,765.70 is: 110,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,429.27 : 197,929.58 = 79,765.70 : x
  2. Step 2: Convert to fraction form
    143,429.27/197,929.58 = 79,765.70/x
  3. Step 3: Cross multiply
    143,429.27x = 197,929.58 × 79,765.70
  4. Step 4: Simplify right side
    143,429.27x = 15,787,990,110.93
  5. Step 5: Solve for x
    x = 15,787,990,110.93/143,429.27
  6. Step 6: Final answer
    x = 110,075.10

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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.