Finding the Fourth Proportional to 147,217.20, 203,162.46 and 83,559.09
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Solution
The fourth proportional to 147,217.20, 203,162.46 and 83,559.09 is: 115,313.09
Step by Step Solution
- Step 1: Write the proportion equation
147,217.20 : 203,162.46 = 83,559.09 : x - Step 2: Convert to fraction form
147,217.20/203,162.46 = 83,559.09/x - Step 3: Cross multiply
147,217.20x = 203,162.46 × 83,559.09 - Step 4: Simplify right side
147,217.20x = 16,976,070,279.76 - Step 5: Solve for x
x = 16,976,070,279.76/147,217.20 - Step 6: Final answer
x = 115,313.09
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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.