Finding the Fourth Proportional to 154,414.08, 213,089.40 and 87,346.08
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Solution
The fourth proportional to 154,414.08, 213,089.40 and 87,346.08 is: 120,536.44
Step by Step Solution
- Step 1: Write the proportion equation
154,414.08 : 213,089.40 = 87,346.08 : x - Step 2: Convert to fraction form
154,414.08/213,089.40 = 87,346.08/x - Step 3: Cross multiply
154,414.08x = 213,089.40 × 87,346.08 - Step 4: Simplify right side
154,414.08x = 18,612,523,779.55 - Step 5: Solve for x
x = 18,612,523,779.55/154,414.08 - Step 6: Final answer
x = 120,536.44
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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.