Finding the Fourth Proportional to 110,678.24, 166,130.36 and 81,007.94
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Solution
The fourth proportional to 110,678.24, 166,130.36 and 81,007.94 is: 121,594.62
Step by Step Solution
- Step 1: Write the proportion equation
110,678.24 : 166,130.36 = 81,007.94 : x - Step 2: Convert to fraction form
110,678.24/166,130.36 = 81,007.94/x - Step 3: Cross multiply
110,678.24x = 166,130.36 × 81,007.94 - Step 4: Simplify right side
110,678.24x = 13,457,878,235.06 - Step 5: Solve for x
x = 13,457,878,235.06/110,678.24 - Step 6: Final answer
x = 121,594.62
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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.