Finding the Fourth Proportional to 147,984.18, 204,197.82 and 84,309.72
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Solution
The fourth proportional to 147,984.18, 204,197.82 and 84,309.72 is: 116,335.82
Step by Step Solution
- Step 1: Write the proportion equation
147,984.18 : 204,197.82 = 84,309.72 : x - Step 2: Convert to fraction form
147,984.18/204,197.82 = 84,309.72/x - Step 3: Cross multiply
147,984.18x = 204,197.82 × 84,309.72 - Step 4: Simplify right side
147,984.18x = 17,215,861,028.81 - Step 5: Solve for x
x = 17,215,861,028.81/147,984.18 - Step 6: Final answer
x = 116,335.82
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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.