Finding the Fourth Proportional to 100,746.15, 151,113.75 and 30,619.99
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Solution
The fourth proportional to 100,746.15, 151,113.75 and 30,619.99 is: 45,928.33
Step by Step Solution
- Step 1: Write the proportion equation
100,746.15 : 151,113.75 = 30,619.99 : x - Step 2: Convert to fraction form
100,746.15/151,113.75 = 30,619.99/x - Step 3: Cross multiply
100,746.15x = 151,113.75 × 30,619.99 - Step 4: Simplify right side
100,746.15x = 4,627,101,930.54 - Step 5: Solve for x
x = 4,627,101,930.54/100,746.15 - Step 6: Final answer
x = 45,928.33
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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.