Finding the Fourth Proportional to 102,368.70, 153,553.05 and 98,286.30
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Solution
The fourth proportional to 102,368.70, 153,553.05 and 98,286.30 is: 147,429.45
Step by Step Solution
- Step 1: Write the proportion equation
102,368.70 : 153,553.05 = 98,286.30 : x - Step 2: Convert to fraction form
102,368.70/153,553.05 = 98,286.30/x - Step 3: Cross multiply
102,368.70x = 153,553.05 × 98,286.30 - Step 4: Simplify right side
102,368.70x = 15,092,161,138.22 - Step 5: Solve for x
x = 15,092,161,138.22/102,368.70 - Step 6: Final answer
x = 147,429.45
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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.