Finding the Fourth Proportional to 98,230.86, 147,347.30 and 78,633.99
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Solution
The fourth proportional to 98,230.86, 147,347.30 and 78,633.99 is: 117,951.80
Step by Step Solution
- Step 1: Write the proportion equation
98,230.86 : 147,347.30 = 78,633.99 : x - Step 2: Convert to fraction form
98,230.86/147,347.30 = 78,633.99/x - Step 3: Cross multiply
98,230.86x = 147,347.30 × 78,633.99 - Step 4: Simplify right side
98,230.86x = 11,586,506,311.31 - Step 5: Solve for x
x = 11,586,506,311.31/98,230.86 - Step 6: Final answer
x = 117,951.80
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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.