Finding the Fourth Proportional to 121,295.40, 182,103.30 and 103,639.13
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Solution
The fourth proportional to 121,295.40, 182,103.30 and 103,639.13 is: 155,595.58
Step by Step Solution
- Step 1: Write the proportion equation
121,295.40 : 182,103.30 = 103,639.13 : x - Step 2: Convert to fraction form
121,295.40/182,103.30 = 103,639.13/x - Step 3: Cross multiply
121,295.40x = 182,103.30 × 103,639.13 - Step 4: Simplify right side
121,295.40x = 18,873,027,582.13 - Step 5: Solve for x
x = 18,873,027,582.13/121,295.40 - Step 6: Final answer
x = 155,595.58
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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.