Finding the Fourth Proportional to 111,765.12, 167,595.84 and 65,031.36
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Solution
The fourth proportional to 111,765.12, 167,595.84 and 65,031.36 is: 97,516.88
Step by Step Solution
- Step 1: Write the proportion equation
111,765.12 : 167,595.84 = 65,031.36 : x - Step 2: Convert to fraction form
111,765.12/167,595.84 = 65,031.36/x - Step 3: Cross multiply
111,765.12x = 167,595.84 × 65,031.36 - Step 4: Simplify right side
111,765.12x = 10,898,985,405.54 - Step 5: Solve for x
x = 10,898,985,405.54/111,765.12 - Step 6: Final answer
x = 97,516.88
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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.