Finding the Fourth Proportional to 148,161.13, 204,461.58 and 80,178.07
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Solution
The fourth proportional to 148,161.13, 204,461.58 and 80,178.07 is: 110,645.31
Step by Step Solution
- Step 1: Write the proportion equation
148,161.13 : 204,461.58 = 80,178.07 : x - Step 2: Convert to fraction form
148,161.13/204,461.58 = 80,178.07/x - Step 3: Cross multiply
148,161.13x = 204,461.58 × 80,178.07 - Step 4: Simplify right side
148,161.13x = 16,393,334,161.95 - Step 5: Solve for x
x = 16,393,334,161.95/148,161.13 - Step 6: Final answer
x = 110,645.31
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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.