Finding the Fourth Proportional to 98,768.34, 147,861.68 and 61,207.70
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Solution
The fourth proportional to 98,768.34, 147,861.68 and 61,207.70 is: 91,631.31
Step by Step Solution
- Step 1: Write the proportion equation
98,768.34 : 147,861.68 = 61,207.70 : x - Step 2: Convert to fraction form
98,768.34/147,861.68 = 61,207.70/x - Step 3: Cross multiply
98,768.34x = 147,861.68 × 61,207.70 - Step 4: Simplify right side
98,768.34x = 9,050,272,305.59 - Step 5: Solve for x
x = 9,050,272,305.59/98,768.34 - Step 6: Final answer
x = 91,631.31
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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.