Finding the Fourth Proportional to 106,653.24, 147,178.35 and 58,905.54
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Solution
The fourth proportional to 106,653.24, 147,178.35 and 58,905.54 is: 81,287.92
Step by Step Solution
- Step 1: Write the proportion equation
106,653.24 : 147,178.35 = 58,905.54 : x - Step 2: Convert to fraction form
106,653.24/147,178.35 = 58,905.54/x - Step 3: Cross multiply
106,653.24x = 147,178.35 × 58,905.54 - Step 4: Simplify right side
106,653.24x = 8,669,620,183.06 - Step 5: Solve for x
x = 8,669,620,183.06/106,653.24 - Step 6: Final answer
x = 81,287.92
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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.