Finding the Fourth Proportional to 112,539.70, 168,809.55 and 29,433.70
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Solution
The fourth proportional to 112,539.70, 168,809.55 and 29,433.70 is: 44,150.55
Step by Step Solution
- Step 1: Write the proportion equation
112,539.70 : 168,809.55 = 29,433.70 : x - Step 2: Convert to fraction form
112,539.70/168,809.55 = 29,433.70/x - Step 3: Cross multiply
112,539.70x = 168,809.55 × 29,433.70 - Step 4: Simplify right side
112,539.70x = 4,968,689,651.84 - Step 5: Solve for x
x = 4,968,689,651.84/112,539.70 - Step 6: Final answer
x = 44,150.55
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1.5x scale
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.