Finding the Fourth Proportional to 106,921.26, 160,391.61 and 28,035.18
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Solution
The fourth proportional to 106,921.26, 160,391.61 and 28,035.18 is: 42,055.32
Step by Step Solution
- Step 1: Write the proportion equation
106,921.26 : 160,391.61 = 28,035.18 : x - Step 2: Convert to fraction form
106,921.26/160,391.61 = 28,035.18/x - Step 3: Cross multiply
106,921.26x = 160,391.61 × 28,035.18 - Step 4: Simplify right side
106,921.26x = 4,496,607,656.84 - Step 5: Solve for x
x = 4,496,607,656.84/106,921.26 - Step 6: Final answer
x = 42,055.32
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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.