Finding the Fourth Proportional to 103,657.91, 155,544.26 and 96,129.15
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Solution
The fourth proportional to 103,657.91, 155,544.26 and 96,129.15 is: 144,246.95
Step by Step Solution
- Step 1: Write the proportion equation
103,657.91 : 155,544.26 = 96,129.15 : x - Step 2: Convert to fraction form
103,657.91/155,544.26 = 96,129.15/x - Step 3: Cross multiply
103,657.91x = 155,544.26 × 96,129.15 - Step 4: Simplify right side
103,657.91x = 14,952,337,020.53 - Step 5: Solve for x
x = 14,952,337,020.53/103,657.91 - Step 6: Final answer
x = 144,246.95
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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.