Finding the Fourth Proportional to 88,989.26, 133,316.08 and 69,171.53
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Solution
The fourth proportional to 88,989.26, 133,316.08 and 69,171.53 is: 103,626.85
Step by Step Solution
- Step 1: Write the proportion equation
88,989.26 : 133,316.08 = 69,171.53 : x - Step 2: Convert to fraction form
88,989.26/133,316.08 = 69,171.53/x - Step 3: Cross multiply
88,989.26x = 133,316.08 × 69,171.53 - Step 4: Simplify right side
88,989.26x = 9,221,676,387.69 - Step 5: Solve for x
x = 9,221,676,387.69/88,989.26 - Step 6: Final answer
x = 103,626.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.