Finding the Fourth Proportional to 103,690.08, 155,509.20 and 29,818.08
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Solution
The fourth proportional to 103,690.08, 155,509.20 and 29,818.08 is: 44,719.67
Step by Step Solution
- Step 1: Write the proportion equation
103,690.08 : 155,509.20 = 29,818.08 : x - Step 2: Convert to fraction form
103,690.08/155,509.20 = 29,818.08/x - Step 3: Cross multiply
103,690.08x = 155,509.20 × 29,818.08 - Step 4: Simplify right side
103,690.08x = 4,636,985,766.34 - Step 5: Solve for x
x = 4,636,985,766.34/103,690.08 - Step 6: Final answer
x = 44,719.67
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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.