Finding the Fourth Proportional to 118,293.12, 163,241.52 and 64,579.68
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Solution
The fourth proportional to 118,293.12, 163,241.52 and 64,579.68 is: 89,118.33
Step by Step Solution
- Step 1: Write the proportion equation
118,293.12 : 163,241.52 = 64,579.68 : x - Step 2: Convert to fraction form
118,293.12/163,241.52 = 64,579.68/x - Step 3: Cross multiply
118,293.12x = 163,241.52 × 64,579.68 - Step 4: Simplify right side
118,293.12x = 10,542,085,124.31 - Step 5: Solve for x
x = 10,542,085,124.31/118,293.12 - Step 6: Final answer
x = 89,118.33
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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.