Finding the Fourth Proportional to 125,569.20, 188,353.80 and 106,542.30
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Solution
The fourth proportional to 125,569.20, 188,353.80 and 106,542.30 is: 159,813.45
Step by Step Solution
- Step 1: Write the proportion equation
125,569.20 : 188,353.80 = 106,542.30 : x - Step 2: Convert to fraction form
125,569.20/188,353.80 = 106,542.30/x - Step 3: Cross multiply
125,569.20x = 188,353.80 × 106,542.30 - Step 4: Simplify right side
125,569.20x = 20,067,647,065.74 - Step 5: Solve for x
x = 20,067,647,065.74/125,569.20 - Step 6: Final answer
x = 159,813.45
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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.