Finding the Fourth Proportional to 124,091.93, 186,137.92 and 86,724.99
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Solution
The fourth proportional to 124,091.93, 186,137.92 and 86,724.99 is: 130,087.49
Step by Step Solution
- Step 1: Write the proportion equation
124,091.93 : 186,137.92 = 86,724.99 : x - Step 2: Convert to fraction form
124,091.93/186,137.92 = 86,724.99/x - Step 3: Cross multiply
124,091.93x = 186,137.92 × 86,724.99 - Step 4: Simplify right side
124,091.93x = 16,142,808,347.69 - Step 5: Solve for x
x = 16,142,808,347.69/124,091.93 - Step 6: Final answer
x = 130,087.49
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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.