Home / 143,390.68-197,903.91-82,994.63

Finding the Fourth Proportional to 143,390.68, 197,903.91 and 82,994.63

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Solution

The fourth proportional to 143,390.68, 197,903.91 and 82,994.63 is: 114,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,390.68 : 197,903.91 = 82,994.63 : x
  2. Step 2: Convert to fraction form
    143,390.68/197,903.91 = 82,994.63/x
  3. Step 3: Cross multiply
    143,390.68x = 197,903.91 × 82,994.63
  4. Step 4: Simplify right side
    143,390.68x = 16,424,960,640.87
  5. Step 5: Solve for x
    x = 16,424,960,640.87/143,390.68
  6. Step 6: Final answer
    x = 114,546.92

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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.