Home / 129,901.40-194,852.10-122,028.20

Finding the Fourth Proportional to 129,901.40, 194,852.10 and 122,028.20

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Solution

The fourth proportional to 129,901.40, 194,852.10 and 122,028.20 is: 183,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,901.40 : 194,852.10 = 122,028.20 : x
  2. Step 2: Convert to fraction form
    129,901.40/194,852.10 = 122,028.20/x
  3. Step 3: Cross multiply
    129,901.40x = 194,852.10 × 122,028.20
  4. Step 4: Simplify right side
    129,901.40x = 23,777,451,029.22
  5. Step 5: Solve for x
    x = 23,777,451,029.22/129,901.40
  6. Step 6: Final answer
    x = 183,042.30

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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.