Finding the Fourth Proportional to 88,279.80, 132,225.30 and 76,615.80
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Solution
The fourth proportional to 88,279.80, 132,225.30 and 76,615.80 is: 114,754.99
Step by Step Solution
- Step 1: Write the proportion equation
88,279.80 : 132,225.30 = 76,615.80 : x - Step 2: Convert to fraction form
88,279.80/132,225.30 = 76,615.80/x - Step 3: Cross multiply
88,279.80x = 132,225.30 × 76,615.80 - Step 4: Simplify right side
88,279.80x = 10,130,547,139.74 - Step 5: Solve for x
x = 10,130,547,139.74/88,279.80 - Step 6: Final answer
x = 114,754.99
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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.