Finding the Fourth Proportional to 122,108.90, 183,163.35 and 121,331.30
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Solution
The fourth proportional to 122,108.90, 183,163.35 and 121,331.30 is: 181,996.95
Step by Step Solution
- Step 1: Write the proportion equation
122,108.90 : 183,163.35 = 121,331.30 : x - Step 2: Convert to fraction form
122,108.90/183,163.35 = 121,331.30/x - Step 3: Cross multiply
122,108.90x = 183,163.35 × 121,331.30 - Step 4: Simplify right side
122,108.90x = 22,223,447,367.86 - Step 5: Solve for x
x = 22,223,447,367.86/122,108.90 - Step 6: Final answer
x = 181,996.95
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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.