Finding the Fourth Proportional to 119,612.16, 179,316.32 and 53,015.99
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Solution
The fourth proportional to 119,612.16, 179,316.32 and 53,015.99 is: 79,478.80
Step by Step Solution
- Step 1: Write the proportion equation
119,612.16 : 179,316.32 = 53,015.99 : x - Step 2: Convert to fraction form
119,612.16/179,316.32 = 53,015.99/x - Step 3: Cross multiply
119,612.16x = 179,316.32 × 53,015.99 - Step 4: Simplify right side
119,612.16x = 9,506,631,066.30 - Step 5: Solve for x
x = 9,506,631,066.30/119,612.16 - Step 6: Final answer
x = 79,478.80
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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.