Finding the Fourth Proportional to 106,986.15, 160,365.42 and 40,397.94
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Solution
The fourth proportional to 106,986.15, 160,365.42 and 40,397.94 is: 60,553.94
Step by Step Solution
- Step 1: Write the proportion equation
106,986.15 : 160,365.42 = 40,397.94 : x - Step 2: Convert to fraction form
106,986.15/160,365.42 = 40,397.94/x - Step 3: Cross multiply
106,986.15x = 160,365.42 × 40,397.94 - Step 4: Simplify right side
106,986.15x = 6,478,432,615.23 - Step 5: Solve for x
x = 6,478,432,615.23/106,986.15 - Step 6: Final answer
x = 60,553.94
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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.