Finding the Fourth Proportional to 153,069.26, 211,238.10 and 84,161.63
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Solution
The fourth proportional to 153,069.26, 211,238.10 and 84,161.63 is: 116,144.43
Step by Step Solution
- Step 1: Write the proportion equation
153,069.26 : 211,238.10 = 84,161.63 : x - Step 2: Convert to fraction form
153,069.26/211,238.10 = 84,161.63/x - Step 3: Cross multiply
153,069.26x = 211,238.10 × 84,161.63 - Step 4: Simplify right side
153,069.26x = 17,778,141,757.91 - Step 5: Solve for x
x = 17,778,141,757.91/153,069.26 - Step 6: Final answer
x = 116,144.43
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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.