Finding the Fourth Proportional to 122,402.86, 183,431.88 and 97,331.62
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Solution
The fourth proportional to 122,402.86, 183,431.88 and 97,331.62 is: 145,860.33
Step by Step Solution
- Step 1: Write the proportion equation
122,402.86 : 183,431.88 = 97,331.62 : x - Step 2: Convert to fraction form
122,402.86/183,431.88 = 97,331.62/x - Step 3: Cross multiply
122,402.86x = 183,431.88 × 97,331.62 - Step 4: Simplify right side
122,402.86x = 17,853,722,040.05 - Step 5: Solve for x
x = 17,853,722,040.05/122,402.86 - Step 6: Final answer
x = 145,860.33
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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.