Finding the Fourth Proportional to 141,815.05, 212,722.35 and 65,872.06
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Solution
The fourth proportional to 141,815.05, 212,722.35 and 65,872.06 is: 98,807.99
Step by Step Solution
- Step 1: Write the proportion equation
141,815.05 : 212,722.35 = 65,872.06 : x - Step 2: Convert to fraction form
141,815.05/212,722.35 = 65,872.06/x - Step 3: Cross multiply
141,815.05x = 212,722.35 × 65,872.06 - Step 4: Simplify right side
141,815.05x = 14,012,459,402.54 - Step 5: Solve for x
x = 14,012,459,402.54/141,815.05 - Step 6: Final answer
x = 98,807.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.