Finding the Fourth Proportional to 159,879.96, 220,634.78 and 88,259.99
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Solution
The fourth proportional to 159,879.96, 220,634.78 and 88,259.99 is: 121,799.02
Step by Step Solution
- Step 1: Write the proportion equation
159,879.96 : 220,634.78 = 88,259.99 : x - Step 2: Convert to fraction form
159,879.96/220,634.78 = 88,259.99/x - Step 3: Cross multiply
159,879.96x = 220,634.78 × 88,259.99 - Step 4: Simplify right side
159,879.96x = 19,473,221,931.98 - Step 5: Solve for x
x = 19,473,221,931.98/159,879.96 - Step 6: Final answer
x = 121,799.02
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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.