Finding the Fourth Proportional to 186,329.91, 257,122.30 and 105,759.08
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Solution
The fourth proportional to 186,329.91, 257,122.30 and 105,759.08 is: 145,940.17
Step by Step Solution
- Step 1: Write the proportion equation
186,329.91 : 257,122.30 = 105,759.08 : x - Step 2: Convert to fraction form
186,329.91/257,122.30 = 105,759.08/x - Step 3: Cross multiply
186,329.91x = 257,122.30 × 105,759.08 - Step 4: Simplify right side
186,329.91x = 27,193,017,895.48 - Step 5: Solve for x
x = 27,193,017,895.48/186,329.91 - Step 6: Final answer
x = 145,940.17
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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.