Finding the Fourth Proportional to 159,645.15, 220,320.23 and 88,025.09
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Solution
The fourth proportional to 159,645.15, 220,320.23 and 88,025.09 is: 121,480.09
Step by Step Solution
- Step 1: Write the proportion equation
159,645.15 : 220,320.23 = 88,025.09 : x - Step 2: Convert to fraction form
159,645.15/220,320.23 = 88,025.09/x - Step 3: Cross multiply
159,645.15x = 220,320.23 × 88,025.09 - Step 4: Simplify right side
159,645.15x = 19,393,706,532.84 - Step 5: Solve for x
x = 19,393,706,532.84/159,645.15 - Step 6: Final answer
x = 121,480.09
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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.