Finding the Fourth Proportional to 103,231.05, 154,808.18 and 40,888.65
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Solution
The fourth proportional to 103,231.05, 154,808.18 and 40,888.65 is: 61,317.77
Step by Step Solution
- Step 1: Write the proportion equation
103,231.05 : 154,808.18 = 40,888.65 : x - Step 2: Convert to fraction form
103,231.05/154,808.18 = 40,888.65/x - Step 3: Cross multiply
103,231.05x = 154,808.18 × 40,888.65 - Step 4: Simplify right side
103,231.05x = 6,329,897,284.71 - Step 5: Solve for x
x = 6,329,897,284.71/103,231.05 - Step 6: Final answer
x = 61,317.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.