Finding the Fourth Proportional to 158,391.14, 218,579.78 and 94,728.95
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Solution
The fourth proportional to 158,391.14, 218,579.78 and 94,728.95 is: 130,725.95
Step by Step Solution
- Step 1: Write the proportion equation
158,391.14 : 218,579.78 = 94,728.95 : x - Step 2: Convert to fraction form
158,391.14/218,579.78 = 94,728.95/x - Step 3: Cross multiply
158,391.14x = 218,579.78 × 94,728.95 - Step 4: Simplify right side
158,391.14x = 20,705,831,484.09 - Step 5: Solve for x
x = 20,705,831,484.09/158,391.14 - Step 6: Final answer
x = 130,725.95
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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.