Finding the Fourth Proportional to 110,799.84, 153,031.06 and 80,719.68
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Solution
The fourth proportional to 110,799.84, 153,031.06 and 80,719.68 is: 111,485.88
Step by Step Solution
- Step 1: Write the proportion equation
110,799.84 : 153,031.06 = 80,719.68 : x - Step 2: Convert to fraction form
110,799.84/153,031.06 = 80,719.68/x - Step 3: Cross multiply
110,799.84x = 153,031.06 × 80,719.68 - Step 4: Simplify right side
110,799.84x = 12,352,618,193.26 - Step 5: Solve for x
x = 12,352,618,193.26/110,799.84 - Step 6: Final answer
x = 111,485.88
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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.