Home / 142,849.45-197,118.98-79,181.83

Finding the Fourth Proportional to 142,849.45, 197,118.98 and 79,181.83

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Solution

The fourth proportional to 142,849.45, 197,118.98 and 79,181.83 is: 109,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,849.45 : 197,118.98 = 79,181.83 : x
  2. Step 2: Convert to fraction form
    142,849.45/197,118.98 = 79,181.83/x
  3. Step 3: Cross multiply
    142,849.45x = 197,118.98 × 79,181.83
  4. Step 4: Simplify right side
    142,849.45x = 15,608,240,578.54
  5. Step 5: Solve for x
    x = 15,608,240,578.54/142,849.45
  6. Step 6: Final answer
    x = 109,263.57

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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.