Finding the Fourth Proportional to 143,242.14, 197,658.99 and 82,803.18
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Solution
The fourth proportional to 143,242.14, 197,658.99 and 82,803.18 is: 114,259.62
Step by Step Solution
- Step 1: Write the proportion equation
143,242.14 : 197,658.99 = 82,803.18 : x - Step 2: Convert to fraction form
143,242.14/197,658.99 = 82,803.18/x - Step 3: Cross multiply
143,242.14x = 197,658.99 × 82,803.18 - Step 4: Simplify right side
143,242.14x = 16,366,792,927.59 - Step 5: Solve for x
x = 16,366,792,927.59/143,242.14 - Step 6: Final answer
x = 114,259.62
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1.5x scale
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.