Finding the Fourth Proportional to 116,206.99, 160,370.90 and 91,012.75
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Solution
The fourth proportional to 116,206.99, 160,370.90 and 91,012.75 is: 125,601.71
Step by Step Solution
- Step 1: Write the proportion equation
116,206.99 : 160,370.90 = 91,012.75 : x - Step 2: Convert to fraction form
116,206.99/160,370.90 = 91,012.75/x - Step 3: Cross multiply
116,206.99x = 160,370.90 × 91,012.75 - Step 4: Simplify right side
116,206.99x = 14,595,796,628.98 - Step 5: Solve for x
x = 14,595,796,628.98/116,206.99 - Step 6: Final answer
x = 125,601.71
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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.