Finding the Fourth Proportional to 157,995.94, 218,025.57 and 86,361.70
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Solution
The fourth proportional to 157,995.94, 218,025.57 and 86,361.70 is: 119,174.32
Step by Step Solution
- Step 1: Write the proportion equation
157,995.94 : 218,025.57 = 86,361.70 : x - Step 2: Convert to fraction form
157,995.94/218,025.57 = 86,361.70/x - Step 3: Cross multiply
157,995.94x = 218,025.57 × 86,361.70 - Step 4: Simplify right side
157,995.94x = 18,829,058,868.67 - Step 5: Solve for x
x = 18,829,058,868.67/157,995.94 - Step 6: Final answer
x = 119,174.32
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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.