Home / 129,623.80-194,435.70-82,929.40

Finding the Fourth Proportional to 129,623.80, 194,435.70 and 82,929.40

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Solution

The fourth proportional to 129,623.80, 194,435.70 and 82,929.40 is: 124,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,623.80 : 194,435.70 = 82,929.40 : x
  2. Step 2: Convert to fraction form
    129,623.80/194,435.70 = 82,929.40/x
  3. Step 3: Cross multiply
    129,623.80x = 194,435.70 × 82,929.40
  4. Step 4: Simplify right side
    129,623.80x = 16,124,435,939.58
  5. Step 5: Solve for x
    x = 16,124,435,939.58/129,623.80
  6. Step 6: Final answer
    x = 124,394.10

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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.