Finding the Fourth Proportional to 84,786.71, 116,227.66 and 84,002.63
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Solution
The fourth proportional to 84,786.71, 116,227.66 and 84,002.63 is: 115,152.82
Step by Step Solution
- Step 1: Write the proportion equation
84,786.71 : 116,227.66 = 84,002.63 : x - Step 2: Convert to fraction form
84,786.71/116,227.66 = 84,002.63/x - Step 3: Cross multiply
84,786.71x = 116,227.66 × 84,002.63 - Step 4: Simplify right side
84,786.71x = 9,763,428,698.73 - Step 5: Solve for x
x = 9,763,428,698.73/84,786.71 - Step 6: Final answer
x = 115,152.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.