Finding the Fourth Proportional to 97,911.20, 135,054.20 and 67,269.68
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Solution
The fourth proportional to 97,911.20, 135,054.20 and 67,269.68 is: 92,788.70
Step by Step Solution
- Step 1: Write the proportion equation
97,911.20 : 135,054.20 = 67,269.68 : x - Step 2: Convert to fraction form
97,911.20/135,054.20 = 67,269.68/x - Step 3: Cross multiply
97,911.20x = 135,054.20 × 67,269.68 - Step 4: Simplify right side
97,911.20x = 9,085,052,816.66 - Step 5: Solve for x
x = 9,085,052,816.66/97,911.20 - Step 6: Final answer
x = 92,788.70
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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.