Finding the Fourth Proportional to 97,679.40, 146,519.10 and 88,639.80
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Solution
The fourth proportional to 97,679.40, 146,519.10 and 88,639.80 is: 132,959.70
Step by Step Solution
- Step 1: Write the proportion equation
97,679.40 : 146,519.10 = 88,639.80 : x - Step 2: Convert to fraction form
97,679.40/146,519.10 = 88,639.80/x - Step 3: Cross multiply
97,679.40x = 146,519.10 × 88,639.80 - Step 4: Simplify right side
97,679.40x = 12,987,423,720.18 - Step 5: Solve for x
x = 12,987,423,720.18/97,679.40 - Step 6: Final answer
x = 132,959.70
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1.5x scale
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.