Finding the Fourth Proportional to 121,328.20, 181,992.30 and 108,497.80
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Solution
The fourth proportional to 121,328.20, 181,992.30 and 108,497.80 is: 162,746.70
Step by Step Solution
- Step 1: Write the proportion equation
121,328.20 : 181,992.30 = 108,497.80 : x - Step 2: Convert to fraction form
121,328.20/181,992.30 = 108,497.80/x - Step 3: Cross multiply
121,328.20x = 181,992.30 × 108,497.80 - Step 4: Simplify right side
121,328.20x = 19,745,764,166.94 - Step 5: Solve for x
x = 19,745,764,166.94/121,328.20 - Step 6: Final answer
x = 162,746.70
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1.5x scale
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.