Finding the Fourth Proportional to 122,673.07, 169,417.34 and 84,531.79
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Solution
The fourth proportional to 122,673.07, 169,417.34 and 84,531.79 is: 116,742.42
Step by Step Solution
- Step 1: Write the proportion equation
122,673.07 : 169,417.34 = 84,531.79 : x - Step 2: Convert to fraction form
122,673.07/169,417.34 = 84,531.79/x - Step 3: Cross multiply
122,673.07x = 169,417.34 × 84,531.79 - Step 4: Simplify right side
122,673.07x = 14,321,151,007.24 - Step 5: Solve for x
x = 14,321,151,007.24/122,673.07 - Step 6: Final answer
x = 116,742.42
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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.