Finding the Fourth Proportional to 153,713.75, 212,124.98 and 83,057.75
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Solution
The fourth proportional to 153,713.75, 212,124.98 and 83,057.75 is: 114,619.70
Step by Step Solution
- Step 1: Write the proportion equation
153,713.75 : 212,124.98 = 83,057.75 : x - Step 2: Convert to fraction form
153,713.75/212,124.98 = 83,057.75/x - Step 3: Cross multiply
153,713.75x = 212,124.98 × 83,057.75 - Step 4: Simplify right side
153,713.75x = 17,618,623,142.31 - Step 5: Solve for x
x = 17,618,623,142.31/153,713.75 - Step 6: Final answer
x = 114,619.70
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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.