Finding the Fourth Proportional to 145,073.86, 217,677.84 and 66,212.26
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Solution
The fourth proportional to 145,073.86, 217,677.84 and 66,212.26 is: 99,348.99
Step by Step Solution
- Step 1: Write the proportion equation
145,073.86 : 217,677.84 = 66,212.26 : x - Step 2: Convert to fraction form
145,073.86/217,677.84 = 66,212.26/x - Step 3: Cross multiply
145,073.86x = 217,677.84 × 66,212.26 - Step 4: Simplify right side
145,073.86x = 14,412,941,738.32 - Step 5: Solve for x
x = 14,412,941,738.32/145,073.86 - Step 6: Final answer
x = 99,348.99
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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.