Finding the Fourth Proportional to 153,668.66, 211,983.68 and 102,665.08
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Solution
The fourth proportional to 153,668.66, 211,983.68 and 102,665.08 is: 141,624.98
Step by Step Solution
- Step 1: Write the proportion equation
153,668.66 : 211,983.68 = 102,665.08 : x - Step 2: Convert to fraction form
153,668.66/211,983.68 = 102,665.08/x - Step 3: Cross multiply
153,668.66x = 211,983.68 × 102,665.08 - Step 4: Simplify right side
153,668.66x = 21,763,321,465.89 - Step 5: Solve for x
x = 21,763,321,465.89/153,668.66 - Step 6: Final answer
x = 141,624.98
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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.