Finding the Fourth Proportional to 154,090.08, 212,580.99 and 93,650.99
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Solution
The fourth proportional to 154,090.08, 212,580.99 and 93,650.99 is: 129,199.88
Step by Step Solution
- Step 1: Write the proportion equation
154,090.08 : 212,580.99 = 93,650.99 : x - Step 2: Convert to fraction form
154,090.08/212,580.99 = 93,650.99/x - Step 3: Cross multiply
154,090.08x = 212,580.99 × 93,650.99 - Step 4: Simplify right side
154,090.08x = 19,908,419,105.78 - Step 5: Solve for x
x = 19,908,419,105.78/154,090.08 - Step 6: Final answer
x = 129,199.88
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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.