Finding the Fourth Proportional to 113,890.17, 170,817.75 and 37,990.08
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Solution
The fourth proportional to 113,890.17, 170,817.75 and 37,990.08 is: 56,979.28
Step by Step Solution
- Step 1: Write the proportion equation
113,890.17 : 170,817.75 = 37,990.08 : x - Step 2: Convert to fraction form
113,890.17/170,817.75 = 37,990.08/x - Step 3: Cross multiply
113,890.17x = 170,817.75 × 37,990.08 - Step 4: Simplify right side
113,890.17x = 6,489,379,987.92 - Step 5: Solve for x
x = 6,489,379,987.92/113,890.17 - Step 6: Final answer
x = 56,979.28
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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.