Finding the Fourth Proportional to 112,538.70, 168,808.05 and 29,432.70
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Solution
The fourth proportional to 112,538.70, 168,808.05 and 29,432.70 is: 44,149.05
Step by Step Solution
- Step 1: Write the proportion equation
112,538.70 : 168,808.05 = 29,432.70 : x - Step 2: Convert to fraction form
112,538.70/168,808.05 = 29,432.70/x - Step 3: Cross multiply
112,538.70x = 168,808.05 × 29,432.70 - Step 4: Simplify right side
112,538.70x = 4,968,476,693.24 - Step 5: Solve for x
x = 4,968,476,693.24/112,538.70 - Step 6: Final answer
x = 44,149.05
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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.