Finding the Fourth Proportional to 147,838.77, 203,966.91 and 84,160.62
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Solution
The fourth proportional to 147,838.77, 203,966.91 and 84,160.62 is: 116,112.85
Step by Step Solution
- Step 1: Write the proportion equation
147,838.77 : 203,966.91 = 84,160.62 : x - Step 2: Convert to fraction form
147,838.77/203,966.91 = 84,160.62/x - Step 3: Cross multiply
147,838.77x = 203,966.91 × 84,160.62 - Step 4: Simplify right side
147,838.77x = 17,165,981,605.08 - Step 5: Solve for x
x = 17,165,981,605.08/147,838.77 - Step 6: Final answer
x = 116,112.85
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1.5x scale
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.