Finding the Fourth Proportional to 159,534.50, 220,159.06 and 87,917.09
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Solution
The fourth proportional to 159,534.50, 220,159.06 and 87,917.09 is: 121,326.38
Step by Step Solution
- Step 1: Write the proportion equation
159,534.50 : 220,159.06 = 87,917.09 : x - Step 2: Convert to fraction form
159,534.50/220,159.06 = 87,917.09/x - Step 3: Cross multiply
159,534.50x = 220,159.06 × 87,917.09 - Step 4: Simplify right side
159,534.50x = 19,355,742,571.75 - Step 5: Solve for x
x = 19,355,742,571.75/159,534.50 - Step 6: Final answer
x = 121,326.38
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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.