Finding the Fourth Proportional to 147,861.84, 221,727.15 and 91,699.68
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Solution
The fourth proportional to 147,861.84, 221,727.15 and 91,699.68 is: 137,508.83
Step by Step Solution
- Step 1: Write the proportion equation
147,861.84 : 221,727.15 = 91,699.68 : x - Step 2: Convert to fraction form
147,861.84/221,727.15 = 91,699.68/x - Step 3: Cross multiply
147,861.84x = 221,727.15 × 91,699.68 - Step 4: Simplify right side
147,861.84x = 20,332,308,702.31 - Step 5: Solve for x
x = 20,332,308,702.31/147,861.84 - Step 6: Final answer
x = 137,508.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.