Finding the Fourth Proportional to 154,138.36, 212,682.06 and 97,509.88
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Solution
The fourth proportional to 154,138.36, 212,682.06 and 97,509.88 is: 134,545.37
Step by Step Solution
- Step 1: Write the proportion equation
154,138.36 : 212,682.06 = 97,509.88 : x - Step 2: Convert to fraction form
154,138.36/212,682.06 = 97,509.88/x - Step 3: Cross multiply
154,138.36x = 212,682.06 × 97,509.88 - Step 4: Simplify right side
154,138.36x = 20,738,602,148.75 - Step 5: Solve for x
x = 20,738,602,148.75/154,138.36 - Step 6: Final answer
x = 134,545.37
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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.