Finding the Fourth Proportional to 98,748.12, 148,045.68 and 48,793.80
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Solution
The fourth proportional to 98,748.12, 148,045.68 and 48,793.80 is: 73,152.90
Step by Step Solution
- Step 1: Write the proportion equation
98,748.12 : 148,045.68 = 48,793.80 : x - Step 2: Convert to fraction form
98,748.12/148,045.68 = 48,793.80/x - Step 3: Cross multiply
98,748.12x = 148,045.68 × 48,793.80 - Step 4: Simplify right side
98,748.12x = 7,223,711,300.78 - Step 5: Solve for x
x = 7,223,711,300.78/98,748.12 - Step 6: Final answer
x = 73,152.90
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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.