Finding the Fourth Proportional to 158,586.63, 218,637.80 and 125,989.19
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Solution
The fourth proportional to 158,586.63, 218,637.80 and 125,989.19 is: 173,696.86
Step by Step Solution
- Step 1: Write the proportion equation
158,586.63 : 218,637.80 = 125,989.19 : x - Step 2: Convert to fraction form
158,586.63/218,637.80 = 125,989.19/x - Step 3: Cross multiply
158,586.63x = 218,637.80 × 125,989.19 - Step 4: Simplify right side
158,586.63x = 27,545,998,894.60 - Step 5: Solve for x
x = 27,545,998,894.60/158,586.63 - Step 6: Final answer
x = 173,696.86
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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.