Finding the Fourth Proportional to 157,843.20, 236,763.18 and 91,240.95
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Solution
The fourth proportional to 157,843.20, 236,763.18 and 91,240.95 is: 136,860.49
Step by Step Solution
- Step 1: Write the proportion equation
157,843.20 : 236,763.18 = 91,240.95 : x - Step 2: Convert to fraction form
157,843.20/236,763.18 = 91,240.95/x - Step 3: Cross multiply
157,843.20x = 236,763.18 × 91,240.95 - Step 4: Simplify right side
157,843.20x = 21,602,497,468.22 - Step 5: Solve for x
x = 21,602,497,468.22/157,843.20 - Step 6: Final answer
x = 136,860.49
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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.