Finding the Fourth Proportional to 122,623.80, 169,282.08 and 80,247.06
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Solution
The fourth proportional to 122,623.80, 169,282.08 and 80,247.06 is: 110,781.02
Step by Step Solution
- Step 1: Write the proportion equation
122,623.80 : 169,282.08 = 80,247.06 : x - Step 2: Convert to fraction form
122,623.80/169,282.08 = 80,247.06/x - Step 3: Cross multiply
122,623.80x = 169,282.08 × 80,247.06 - Step 4: Simplify right side
122,623.80x = 13,584,389,230.68 - Step 5: Solve for x
x = 13,584,389,230.68/122,623.80 - Step 6: Final answer
x = 110,781.02
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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.