Finding the Fourth Proportional to 124,970.26, 172,458.94 and 68,381.62
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Solution
The fourth proportional to 124,970.26, 172,458.94 and 68,381.62 is: 94,366.63
Step by Step Solution
- Step 1: Write the proportion equation
124,970.26 : 172,458.94 = 68,381.62 : x - Step 2: Convert to fraction form
124,970.26/172,458.94 = 68,381.62/x - Step 3: Cross multiply
124,970.26x = 172,458.94 × 68,381.62 - Step 4: Simplify right side
124,970.26x = 11,793,021,700.68 - Step 5: Solve for x
x = 11,793,021,700.68/124,970.26 - Step 6: Final answer
x = 94,366.63
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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.