Finding the Fourth Proportional to 119,711.19, 165,268.86 and 79,479.90
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Solution
The fourth proportional to 119,711.19, 165,268.86 and 79,479.90 is: 109,727.02
Step by Step Solution
- Step 1: Write the proportion equation
119,711.19 : 165,268.86 = 79,479.90 : x - Step 2: Convert to fraction form
119,711.19/165,268.86 = 79,479.90/x - Step 3: Cross multiply
119,711.19x = 165,268.86 × 79,479.90 - Step 4: Simplify right side
119,711.19x = 13,135,552,465.91 - Step 5: Solve for x
x = 13,135,552,465.91/119,711.19 - Step 6: Final answer
x = 109,727.02
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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.