Finding the Fourth Proportional to 115,864.14, 159,964.74 and 88,953.06
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Solution
The fourth proportional to 115,864.14, 159,964.74 and 88,953.06 is: 122,810.67
Step by Step Solution
- Step 1: Write the proportion equation
115,864.14 : 159,964.74 = 88,953.06 : x - Step 2: Convert to fraction form
115,864.14/159,964.74 = 88,953.06/x - Step 3: Cross multiply
115,864.14x = 159,964.74 × 88,953.06 - Step 4: Simplify right side
115,864.14x = 14,229,353,115.10 - Step 5: Solve for x
x = 14,229,353,115.10/115,864.14 - Step 6: Final answer
x = 122,810.67
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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.