Finding the Fourth Proportional to 97,459.80, 134,431.11 and 68,821.08
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Solution
The fourth proportional to 97,459.80, 134,431.11 and 68,821.08 is: 94,928.31
Step by Step Solution
- Step 1: Write the proportion equation
97,459.80 : 134,431.11 = 68,821.08 : x - Step 2: Convert to fraction form
97,459.80/134,431.11 = 68,821.08/x - Step 3: Cross multiply
97,459.80x = 134,431.11 × 68,821.08 - Step 4: Simplify right side
97,459.80x = 9,251,694,175.80 - Step 5: Solve for x
x = 9,251,694,175.80/97,459.80 - Step 6: Final answer
x = 94,928.31
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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.