Finding the Fourth Proportional to 153,137.97, 211,330.57 and 85,153.48
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Solution
The fourth proportional to 153,137.97, 211,330.57 and 85,153.48 is: 117,511.90
Step by Step Solution
- Step 1: Write the proportion equation
153,137.97 : 211,330.57 = 85,153.48 : x - Step 2: Convert to fraction form
153,137.97/211,330.57 = 85,153.48/x - Step 3: Cross multiply
153,137.97x = 211,330.57 × 85,153.48 - Step 4: Simplify right side
153,137.97x = 17,995,533,356.21 - Step 5: Solve for x
x = 17,995,533,356.21/153,137.97 - Step 6: Final answer
x = 117,511.90
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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.