Finding the Fourth Proportional to 154,021.05, 212,435.32 and 97,377.75
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Solution
The fourth proportional to 154,021.05, 212,435.32 and 97,377.75 is: 134,309.39
Step by Step Solution
- Step 1: Write the proportion equation
154,021.05 : 212,435.32 = 97,377.75 : x - Step 2: Convert to fraction form
154,021.05/212,435.32 = 97,377.75/x - Step 3: Cross multiply
154,021.05x = 212,435.32 × 97,377.75 - Step 4: Simplify right side
154,021.05x = 20,686,473,482.13 - Step 5: Solve for x
x = 20,686,473,482.13/154,021.05 - Step 6: Final answer
x = 134,309.39
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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.