Finding the Fourth Proportional to 105,296.19, 157,920.99 and 30,400.03
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Solution
The fourth proportional to 105,296.19, 157,920.99 and 30,400.03 is: 45,593.32
Step by Step Solution
- Step 1: Write the proportion equation
105,296.19 : 157,920.99 = 30,400.03 : x - Step 2: Convert to fraction form
105,296.19/157,920.99 = 30,400.03/x - Step 3: Cross multiply
105,296.19x = 157,920.99 × 30,400.03 - Step 4: Simplify right side
105,296.19x = 4,800,802,833.63 - Step 5: Solve for x
x = 4,800,802,833.63/105,296.19 - Step 6: Final answer
x = 45,593.32
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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.