Finding the Fourth Proportional to 97,910.20, 135,052.82 and 67,268.68
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Solution
The fourth proportional to 97,910.20, 135,052.82 and 67,268.68 is: 92,787.32
Step by Step Solution
- Step 1: Write the proportion equation
97,910.20 : 135,052.82 = 67,268.68 : x - Step 2: Convert to fraction form
97,910.20/135,052.82 = 67,268.68/x - Step 3: Cross multiply
97,910.20x = 135,052.82 × 67,268.68 - Step 4: Simplify right side
97,910.20x = 9,084,824,931.68 - Step 5: Solve for x
x = 9,084,824,931.68/97,910.20 - Step 6: Final answer
x = 92,787.32
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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.