Finding the Fourth Proportional to 107,916.30, 161,874.45 and 97,418.70
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Solution
The fourth proportional to 107,916.30, 161,874.45 and 97,418.70 is: 146,128.05
Step by Step Solution
- Step 1: Write the proportion equation
107,916.30 : 161,874.45 = 97,418.70 : x - Step 2: Convert to fraction form
107,916.30/161,874.45 = 97,418.70/x - Step 3: Cross multiply
107,916.30x = 161,874.45 × 97,418.70 - Step 4: Simplify right side
107,916.30x = 15,769,598,482.22 - Step 5: Solve for x
x = 15,769,598,482.22/107,916.30 - Step 6: Final answer
x = 146,128.05
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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.