Finding the Fourth Proportional to 119,261.70, 164,512.61 and 74,471.94
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Solution
The fourth proportional to 119,261.70, 164,512.61 and 74,471.94 is: 102,728.48
Step by Step Solution
- Step 1: Write the proportion equation
119,261.70 : 164,512.61 = 74,471.94 : x - Step 2: Convert to fraction form
119,261.70/164,512.61 = 74,471.94/x - Step 3: Cross multiply
119,261.70x = 164,512.61 × 74,471.94 - Step 4: Simplify right side
119,261.70x = 12,251,572,996.06 - Step 5: Solve for x
x = 12,251,572,996.06/119,261.70 - Step 6: Final answer
x = 102,728.48
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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.