Finding the Fourth Proportional to 138,301.02, 207,626.49 and 117,655.74
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Solution
The fourth proportional to 138,301.02, 207,626.49 and 117,655.74 is: 176,632.45
Step by Step Solution
- Step 1: Write the proportion equation
138,301.02 : 207,626.49 = 117,655.74 : x - Step 2: Convert to fraction form
138,301.02/207,626.49 = 117,655.74/x - Step 3: Cross multiply
138,301.02x = 207,626.49 × 117,655.74 - Step 4: Simplify right side
138,301.02x = 24,428,448,324.55 - Step 5: Solve for x
x = 24,428,448,324.55/138,301.02 - Step 6: Final answer
x = 176,632.45
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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.