Finding the Fourth Proportional to 140,678.47, 211,019.07 and 55,297.99
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Solution
The fourth proportional to 140,678.47, 211,019.07 and 55,297.99 is: 82,947.52
Step by Step Solution
- Step 1: Write the proportion equation
140,678.47 : 211,019.07 = 55,297.99 : x - Step 2: Convert to fraction form
140,678.47/211,019.07 = 55,297.99/x - Step 3: Cross multiply
140,678.47x = 211,019.07 × 55,297.99 - Step 4: Simplify right side
140,678.47x = 11,668,930,893.81 - Step 5: Solve for x
x = 11,668,930,893.81/140,678.47 - Step 6: Final answer
x = 82,947.52
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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.