Finding the Fourth Proportional to 125,201.23, 172,782.12 and 68,612.61
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Solution
The fourth proportional to 125,201.23, 172,782.12 and 68,612.61 is: 94,687.83
Step by Step Solution
- Step 1: Write the proportion equation
125,201.23 : 172,782.12 = 68,612.61 : x - Step 2: Convert to fraction form
125,201.23/172,782.12 = 68,612.61/x - Step 3: Cross multiply
125,201.23x = 172,782.12 × 68,612.61 - Step 4: Simplify right side
125,201.23x = 11,855,032,214.53 - Step 5: Solve for x
x = 11,855,032,214.53/125,201.23 - Step 6: Final answer
x = 94,687.83
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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.