Finding the Fourth Proportional to 154,035.16, 212,566.16 and 86,053.12
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Solution
The fourth proportional to 154,035.16, 212,566.16 and 86,053.12 is: 118,751.99
Step by Step Solution
- Step 1: Write the proportion equation
154,035.16 : 212,566.16 = 86,053.12 : x - Step 2: Convert to fraction form
154,035.16/212,566.16 = 86,053.12/x - Step 3: Cross multiply
154,035.16x = 212,566.16 × 86,053.12 - Step 4: Simplify right side
154,035.16x = 18,291,980,958.14 - Step 5: Solve for x
x = 18,291,980,958.14/154,035.16 - Step 6: Final answer
x = 118,751.99
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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.