Finding the Fourth Proportional to 138,479.99, 207,636.87 and 63,506.21
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Solution
The fourth proportional to 138,479.99, 207,636.87 and 63,506.21 is: 95,221.19
Step by Step Solution
- Step 1: Write the proportion equation
138,479.99 : 207,636.87 = 63,506.21 : x - Step 2: Convert to fraction form
138,479.99/207,636.87 = 63,506.21/x - Step 3: Cross multiply
138,479.99x = 207,636.87 × 63,506.21 - Step 4: Simplify right side
138,479.99x = 13,186,229,631.78 - Step 5: Solve for x
x = 13,186,229,631.78/138,479.99 - Step 6: Final answer
x = 95,221.19
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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.