Finding the Fourth Proportional to 115,489.65, 159,528.72 and 92,913.69
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Solution
The fourth proportional to 115,489.65, 159,528.72 and 92,913.69 is: 128,343.99
Step by Step Solution
- Step 1: Write the proportion equation
115,489.65 : 159,528.72 = 92,913.69 : x - Step 2: Convert to fraction form
115,489.65/159,528.72 = 92,913.69/x - Step 3: Cross multiply
115,489.65x = 159,528.72 × 92,913.69 - Step 4: Simplify right side
115,489.65x = 14,822,402,036.18 - Step 5: Solve for x
x = 14,822,402,036.18/115,489.65 - Step 6: Final answer
x = 128,343.99
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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.