Finding the Fourth Proportional to 158,172.18, 218,277.63 and 86,552.19
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Solution
The fourth proportional to 158,172.18, 218,277.63 and 86,552.19 is: 119,442.03
Step by Step Solution
- Step 1: Write the proportion equation
158,172.18 : 218,277.63 = 86,552.19 : x - Step 2: Convert to fraction form
158,172.18/218,277.63 = 86,552.19/x - Step 3: Cross multiply
158,172.18x = 218,277.63 × 86,552.19 - Step 4: Simplify right side
158,172.18x = 18,892,406,904.51 - Step 5: Solve for x
x = 18,892,406,904.51/158,172.18 - Step 6: Final answer
x = 119,442.03
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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.