Finding the Fourth Proportional to 123,992.44, 170,820.30 and 86,201.08
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Solution
The fourth proportional to 123,992.44, 170,820.30 and 86,201.08 is: 118,756.39
Step by Step Solution
- Step 1: Write the proportion equation
123,992.44 : 170,820.30 = 86,201.08 : x - Step 2: Convert to fraction form
123,992.44/170,820.30 = 86,201.08/x - Step 3: Cross multiply
123,992.44x = 170,820.30 × 86,201.08 - Step 4: Simplify right side
123,992.44x = 14,724,894,345.92 - Step 5: Solve for x
x = 14,724,894,345.92/123,992.44 - Step 6: Final answer
x = 118,756.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.