Finding the Fourth Proportional to 147,879.50, 204,059.09 and 90,534.99
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Solution
The fourth proportional to 147,879.50, 204,059.09 and 90,534.99 is: 124,929.33
Step by Step Solution
- Step 1: Write the proportion equation
147,879.50 : 204,059.09 = 90,534.99 : x - Step 2: Convert to fraction form
147,879.50/204,059.09 = 90,534.99/x - Step 3: Cross multiply
147,879.50x = 204,059.09 × 90,534.99 - Step 4: Simplify right side
147,879.50x = 18,474,487,219.88 - Step 5: Solve for x
x = 18,474,487,219.88/147,879.50 - Step 6: Final answer
x = 124,929.33
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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.