Finding the Fourth Proportional to 122,612.09, 169,219.80 and 68,895.94
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Solution
The fourth proportional to 122,612.09, 169,219.80 and 68,895.94 is: 95,084.89
Step by Step Solution
- Step 1: Write the proportion equation
122,612.09 : 169,219.80 = 68,895.94 : x - Step 2: Convert to fraction form
122,612.09/169,219.80 = 68,895.94/x - Step 3: Cross multiply
122,612.09x = 169,219.80 × 68,895.94 - Step 4: Simplify right side
122,612.09x = 11,658,557,187.61 - Step 5: Solve for x
x = 11,658,557,187.61/122,612.09 - Step 6: Final answer
x = 95,084.89
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1.5x scale
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.