Finding the Fourth Proportional to 125,292.61, 172,911.68 and 68,703.99
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Solution
The fourth proportional to 125,292.61, 172,911.68 and 68,703.99 is: 94,815.83
Step by Step Solution
- Step 1: Write the proportion equation
125,292.61 : 172,911.68 = 68,703.99 : x - Step 2: Convert to fraction form
125,292.61/172,911.68 = 68,703.99/x - Step 3: Cross multiply
125,292.61x = 172,911.68 × 68,703.99 - Step 4: Simplify right side
125,292.61x = 11,879,722,333.60 - Step 5: Solve for x
x = 11,879,722,333.60/125,292.61 - Step 6: Final answer
x = 94,815.83
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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.