Finding the Fourth Proportional to 151,407.80, 208,877.10 and 90,119.62
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Solution
The fourth proportional to 151,407.80, 208,877.10 and 90,119.62 is: 124,325.99
Step by Step Solution
- Step 1: Write the proportion equation
151,407.80 : 208,877.10 = 90,119.62 : x - Step 2: Convert to fraction form
151,407.80/208,877.10 = 90,119.62/x - Step 3: Cross multiply
151,407.80x = 208,877.10 × 90,119.62 - Step 4: Simplify right side
151,407.80x = 18,823,924,801.85 - Step 5: Solve for x
x = 18,823,924,801.85/151,407.80 - Step 6: Final answer
x = 124,325.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.