Finding the Fourth Proportional to 132,410.99, 182,728.35 and 71,981.75
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Solution
The fourth proportional to 132,410.99, 182,728.35 and 71,981.75 is: 99,335.46
Step by Step Solution
- Step 1: Write the proportion equation
132,410.99 : 182,728.35 = 71,981.75 : x - Step 2: Convert to fraction form
132,410.99/182,728.35 = 71,981.75/x - Step 3: Cross multiply
132,410.99x = 182,728.35 × 71,981.75 - Step 4: Simplify right side
132,410.99x = 13,153,106,864.43 - Step 5: Solve for x
x = 13,153,106,864.43/132,410.99 - Step 6: Final answer
x = 99,335.46
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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.