Finding the Fourth Proportional to 119,079.99, 164,329.76 and 65,365.92
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Solution
The fourth proportional to 119,079.99, 164,329.76 and 65,365.92 is: 90,204.63
Step by Step Solution
- Step 1: Write the proportion equation
119,079.99 : 164,329.76 = 65,365.92 : x - Step 2: Convert to fraction form
119,079.99/164,329.76 = 65,365.92/x - Step 3: Cross multiply
119,079.99x = 164,329.76 × 65,365.92 - Step 4: Simplify right side
119,079.99x = 10,741,566,109.19 - Step 5: Solve for x
x = 10,741,566,109.19/119,079.99 - Step 6: Final answer
x = 90,204.63
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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.