Finding the Fourth Proportional to 121,098.24, 166,756.08 and 87,046.68
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Solution
The fourth proportional to 121,098.24, 166,756.08 and 87,046.68 is: 119,866.01
Step by Step Solution
- Step 1: Write the proportion equation
121,098.24 : 166,756.08 = 87,046.68 : x - Step 2: Convert to fraction form
121,098.24/166,756.08 = 87,046.68/x - Step 3: Cross multiply
121,098.24x = 166,756.08 × 87,046.68 - Step 4: Simplify right side
121,098.24x = 14,515,563,133.81 - Step 5: Solve for x
x = 14,515,563,133.81/121,098.24 - Step 6: Final answer
x = 119,866.01
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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.