Finding the Fourth Proportional to 123,207.64, 170,026.30 and 69,492.49
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Solution
The fourth proportional to 123,207.64, 170,026.30 and 69,492.49 is: 95,899.50
Step by Step Solution
- Step 1: Write the proportion equation
123,207.64 : 170,026.30 = 69,492.49 : x - Step 2: Convert to fraction form
123,207.64/170,026.30 = 69,492.49/x - Step 3: Cross multiply
123,207.64x = 170,026.30 × 69,492.49 - Step 4: Simplify right side
123,207.64x = 11,815,550,952.49 - Step 5: Solve for x
x = 11,815,550,952.49/123,207.64 - Step 6: Final answer
x = 95,899.50
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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.