Finding the Fourth Proportional to 103,633.08, 155,426.40 and 40,454.70
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Solution
The fourth proportional to 103,633.08, 155,426.40 and 40,454.70 is: 60,672.99
Step by Step Solution
- Step 1: Write the proportion equation
103,633.08 : 155,426.40 = 40,454.70 : x - Step 2: Convert to fraction form
103,633.08/155,426.40 = 40,454.70/x - Step 3: Cross multiply
103,633.08x = 155,426.40 × 40,454.70 - Step 4: Simplify right side
103,633.08x = 6,287,728,384.08 - Step 5: Solve for x
x = 6,287,728,384.08/103,633.08 - Step 6: Final answer
x = 60,672.99
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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.