Finding the Fourth Proportional to 122,754.32, 169,388.99 and 69,038.19
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Solution
The fourth proportional to 122,754.32, 169,388.99 and 69,038.19 is: 95,265.97
Step by Step Solution
- Step 1: Write the proportion equation
122,754.32 : 169,388.99 = 69,038.19 : x - Step 2: Convert to fraction form
122,754.32/169,388.99 = 69,038.19/x - Step 3: Cross multiply
122,754.32x = 169,388.99 × 69,038.19 - Step 4: Simplify right side
122,754.32x = 11,694,309,189.23 - Step 5: Solve for x
x = 11,694,309,189.23/122,754.32 - Step 6: Final answer
x = 95,265.97
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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.