Finding the Fourth Proportional to 149,236.14, 205,935.48 and 84,706.70
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Solution
The fourth proportional to 149,236.14, 205,935.48 and 84,706.70 is: 116,889.35
Step by Step Solution
- Step 1: Write the proportion equation
149,236.14 : 205,935.48 = 84,706.70 : x - Step 2: Convert to fraction form
149,236.14/205,935.48 = 84,706.70/x - Step 3: Cross multiply
149,236.14x = 205,935.48 × 84,706.70 - Step 4: Simplify right side
149,236.14x = 17,444,114,923.72 - Step 5: Solve for x
x = 17,444,114,923.72/149,236.14 - Step 6: Final answer
x = 116,889.35
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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.