Finding the Fourth Proportional to 147,701.74, 203,827.36 and 80,633.74
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Solution
The fourth proportional to 147,701.74, 203,827.36 and 80,633.74 is: 111,273.99
Step by Step Solution
- Step 1: Write the proportion equation
147,701.74 : 203,827.36 = 80,633.74 : x - Step 2: Convert to fraction form
147,701.74/203,827.36 = 80,633.74/x - Step 3: Cross multiply
147,701.74x = 203,827.36 × 80,633.74 - Step 4: Simplify right side
147,701.74x = 16,435,362,351.13 - Step 5: Solve for x
x = 16,435,362,351.13/147,701.74 - Step 6: Final answer
x = 111,273.99
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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.