Finding the Fourth Proportional to 118,719.69, 163,833.18 and 65,007.99
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Solution
The fourth proportional to 118,719.69, 163,833.18 and 65,007.99 is: 89,711.03
Step by Step Solution
- Step 1: Write the proportion equation
118,719.69 : 163,833.18 = 65,007.99 : x - Step 2: Convert to fraction form
118,719.69/163,833.18 = 65,007.99/x - Step 3: Cross multiply
118,719.69x = 163,833.18 × 65,007.99 - Step 4: Simplify right side
118,719.69x = 10,650,465,727.11 - Step 5: Solve for x
x = 10,650,465,727.11/118,719.69 - Step 6: Final answer
x = 89,711.03
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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.