Finding the Fourth Proportional to 121,866.11, 182,725.35 and 79,695.28
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Solution
The fourth proportional to 121,866.11, 182,725.35 and 79,695.28 is: 119,494.65
Step by Step Solution
- Step 1: Write the proportion equation
121,866.11 : 182,725.35 = 79,695.28 : x - Step 2: Convert to fraction form
121,866.11/182,725.35 = 79,695.28/x - Step 3: Cross multiply
121,866.11x = 182,725.35 × 79,695.28 - Step 4: Simplify right side
121,866.11x = 14,562,347,931.35 - Step 5: Solve for x
x = 14,562,347,931.35/121,866.11 - Step 6: Final answer
x = 119,494.65
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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.