Finding the Fourth Proportional to 158,126.39, 218,224.10 and 91,079.99
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Solution
The fourth proportional to 158,126.39, 218,224.10 and 91,079.99 is: 125,695.96
Step by Step Solution
- Step 1: Write the proportion equation
158,126.39 : 218,224.10 = 91,079.99 : x - Step 2: Convert to fraction form
158,126.39/218,224.10 = 91,079.99/x - Step 3: Cross multiply
158,126.39x = 218,224.10 × 91,079.99 - Step 4: Simplify right side
158,126.39x = 19,875,848,390.36 - Step 5: Solve for x
x = 19,875,848,390.36/158,126.39 - Step 6: Final answer
x = 125,695.96
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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.