Finding the Fourth Proportional to 186,821.62, 257,813.34 and 101,938.62
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Solution
The fourth proportional to 186,821.62, 257,813.34 and 101,938.62 is: 140,675.03
Step by Step Solution
- Step 1: Write the proportion equation
186,821.62 : 257,813.34 = 101,938.62 : x - Step 2: Convert to fraction form
186,821.62/257,813.34 = 101,938.62/x - Step 3: Cross multiply
186,821.62x = 257,813.34 × 101,938.62 - Step 4: Simplify right side
186,821.62x = 26,281,136,097.19 - Step 5: Solve for x
x = 26,281,136,097.19/186,821.62 - Step 6: Final answer
x = 140,675.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.