Finding the Fourth Proportional to 115,965.77, 160,030.05 and 68,222.19
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Solution
The fourth proportional to 115,965.77, 160,030.05 and 68,222.19 is: 94,145.03
Step by Step Solution
- Step 1: Write the proportion equation
115,965.77 : 160,030.05 = 68,222.19 : x - Step 2: Convert to fraction form
115,965.77/160,030.05 = 68,222.19/x - Step 3: Cross multiply
115,965.77x = 160,030.05 × 68,222.19 - Step 4: Simplify right side
115,965.77x = 10,917,600,476.81 - Step 5: Solve for x
x = 10,917,600,476.81/115,965.77 - Step 6: Final answer
x = 94,145.03
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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.