Finding the Fourth Proportional to 124,586.80, 186,442.80 and 85,220.80
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Solution
The fourth proportional to 124,586.80, 186,442.80 and 85,220.80 is: 127,532.01
Step by Step Solution
- Step 1: Write the proportion equation
124,586.80 : 186,442.80 = 85,220.80 : x - Step 2: Convert to fraction form
124,586.80/186,442.80 = 85,220.80/x - Step 3: Cross multiply
124,586.80x = 186,442.80 × 85,220.80 - Step 4: Simplify right side
124,586.80x = 15,888,804,570.24 - Step 5: Solve for x
x = 15,888,804,570.24/124,586.80 - Step 6: Final answer
x = 127,532.01
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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.