Finding the Fourth Proportional to 122,619.08, 169,217.34 and 68,900.88
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Solution
The fourth proportional to 122,619.08, 169,217.34 and 68,900.88 is: 95,084.91
Step by Step Solution
- Step 1: Write the proportion equation
122,619.08 : 169,217.34 = 68,900.88 : x - Step 2: Convert to fraction form
122,619.08/169,217.34 = 68,900.88/x - Step 3: Cross multiply
122,619.08x = 169,217.34 × 68,900.88 - Step 4: Simplify right side
122,619.08x = 11,659,223,637.26 - Step 5: Solve for x
x = 11,659,223,637.26/122,619.08 - Step 6: Final answer
x = 95,084.91
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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.