Finding the Fourth Proportional to 132,135.18, 182,334.51 and 78,410.94
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Solution
The fourth proportional to 132,135.18, 182,334.51 and 78,410.94 is: 108,199.95
Step by Step Solution
- Step 1: Write the proportion equation
132,135.18 : 182,334.51 = 78,410.94 : x - Step 2: Convert to fraction form
132,135.18/182,334.51 = 78,410.94/x - Step 3: Cross multiply
132,135.18x = 182,334.51 × 78,410.94 - Step 4: Simplify right side
132,135.18x = 14,297,020,323.54 - Step 5: Solve for x
x = 14,297,020,323.54/132,135.18 - Step 6: Final answer
x = 108,199.95
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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.