Finding the Fourth Proportional to 106,932.71, 147,604.03 and 61,628.79
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Solution
The fourth proportional to 106,932.71, 147,604.03 and 61,628.79 is: 85,068.99
Step by Step Solution
- Step 1: Write the proportion equation
106,932.71 : 147,604.03 = 61,628.79 : x - Step 2: Convert to fraction form
106,932.71/147,604.03 = 61,628.79/x - Step 3: Cross multiply
106,932.71x = 147,604.03 × 61,628.79 - Step 4: Simplify right side
106,932.71x = 9,096,657,768.02 - Step 5: Solve for x
x = 9,096,657,768.02/106,932.71 - Step 6: Final answer
x = 85,068.99
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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.