Finding the Fourth Proportional to 102,705.70, 144,202.70 and 102,705.70
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Solution
The fourth proportional to 102,705.70, 144,202.70 and 102,705.70 is: 144,202.70
Step by Step Solution
- Step 1: Write the proportion equation
102,705.70 : 144,202.70 = 102,705.70 : x - Step 2: Convert to fraction form
102,705.70/144,202.70 = 102,705.70/x - Step 3: Cross multiply
102,705.70x = 144,202.70 × 102,705.70 - Step 4: Simplify right side
102,705.70x = 14,810,439,245.39 - Step 5: Solve for x
x = 14,810,439,245.39/102,705.70 - Step 6: Final answer
x = 144,202.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.