Finding the Fourth Proportional to 154,097.48, 212,638.68 and 105,740.87
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Solution
The fourth proportional to 154,097.48, 212,638.68 and 105,740.87 is: 145,911.53
Step by Step Solution
- Step 1: Write the proportion equation
154,097.48 : 212,638.68 = 105,740.87 : x - Step 2: Convert to fraction form
154,097.48/212,638.68 = 105,740.87/x - Step 3: Cross multiply
154,097.48x = 212,638.68 × 105,740.87 - Step 4: Simplify right side
154,097.48x = 22,484,599,018.85 - Step 5: Solve for x
x = 22,484,599,018.85/154,097.48 - Step 6: Final answer
x = 145,911.53
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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.