Finding the Fourth Proportional to 118,451.08, 163,415.70 and 68,123.08
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Solution
The fourth proportional to 118,451.08, 163,415.70 and 68,123.08 is: 93,982.94
Step by Step Solution
- Step 1: Write the proportion equation
118,451.08 : 163,415.70 = 68,123.08 : x - Step 2: Convert to fraction form
118,451.08/163,415.70 = 68,123.08/x - Step 3: Cross multiply
118,451.08x = 163,415.70 × 68,123.08 - Step 4: Simplify right side
118,451.08x = 11,132,380,804.36 - Step 5: Solve for x
x = 11,132,380,804.36/118,451.08 - Step 6: Final answer
x = 93,982.94
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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.