Home / 129,942.45-194,913.68-122,166.45

Finding the Fourth Proportional to 129,942.45, 194,913.68 and 122,166.45

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Solution

The fourth proportional to 129,942.45, 194,913.68 and 122,166.45 is: 183,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,942.45 : 194,913.68 = 122,166.45 : x
  2. Step 2: Convert to fraction form
    129,942.45/194,913.68 = 122,166.45/x
  3. Step 3: Cross multiply
    129,942.45x = 194,913.68 × 122,166.45
  4. Step 4: Simplify right side
    129,942.45x = 23,811,911,731.20
  5. Step 5: Solve for x
    x = 23,811,911,731.20/129,942.45
  6. Step 6: Final answer
    x = 183,249.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.