Finding the Fourth Proportional to 154,102.08, 212,665.08 and 87,034.08
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Solution
The fourth proportional to 154,102.08, 212,665.08 and 87,034.08 is: 120,109.41
Step by Step Solution
- Step 1: Write the proportion equation
154,102.08 : 212,665.08 = 87,034.08 : x - Step 2: Convert to fraction form
154,102.08/212,665.08 = 87,034.08/x - Step 3: Cross multiply
154,102.08x = 212,665.08 × 87,034.08 - Step 4: Simplify right side
154,102.08x = 18,509,109,585.93 - Step 5: Solve for x
x = 18,509,109,585.93/154,102.08 - Step 6: Final answer
x = 120,109.41
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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.