Finding the Fourth Proportional to 121,531.20, 182,296.80 and 106,768.95
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Solution
The fourth proportional to 121,531.20, 182,296.80 and 106,768.95 is: 160,153.43
Step by Step Solution
- Step 1: Write the proportion equation
121,531.20 : 182,296.80 = 106,768.95 : x - Step 2: Convert to fraction form
121,531.20/182,296.80 = 106,768.95/x - Step 3: Cross multiply
121,531.20x = 182,296.80 × 106,768.95 - Step 4: Simplify right side
121,531.20x = 19,463,637,924.36 - Step 5: Solve for x
x = 19,463,637,924.36/121,531.20 - Step 6: Final answer
x = 160,153.43
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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.