Finding the Fourth Proportional to 158,957.64, 219,361.37 and 87,337.49
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Solution
The fourth proportional to 158,957.64, 219,361.37 and 87,337.49 is: 120,525.63
Step by Step Solution
- Step 1: Write the proportion equation
158,957.64 : 219,361.37 = 87,337.49 : x - Step 2: Convert to fraction form
158,957.64/219,361.37 = 87,337.49/x - Step 3: Cross multiply
158,957.64x = 219,361.37 × 87,337.49 - Step 4: Simplify right side
158,957.64x = 19,158,469,925.27 - Step 5: Solve for x
x = 19,158,469,925.27/158,957.64 - Step 6: Final answer
x = 120,525.63
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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.