Finding the Fourth Proportional to 122,577.60, 169,154.88 and 68,133.12
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Solution
The fourth proportional to 122,577.60, 169,154.88 and 68,133.12 is: 94,022.48
Step by Step Solution
- Step 1: Write the proportion equation
122,577.60 : 169,154.88 = 68,133.12 : x - Step 2: Convert to fraction form
122,577.60/169,154.88 = 68,133.12/x - Step 3: Cross multiply
122,577.60x = 169,154.88 × 68,133.12 - Step 4: Simplify right side
122,577.60x = 11,525,049,737.63 - Step 5: Solve for x
x = 11,525,049,737.63/122,577.60 - Step 6: Final answer
x = 94,022.48
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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.