Finding the Fourth Proportional to 118,340.21, 163,308.41 and 64,625.06
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Solution
The fourth proportional to 118,340.21, 163,308.41 and 64,625.06 is: 89,181.99
Step by Step Solution
- Step 1: Write the proportion equation
118,340.21 : 163,308.41 = 64,625.06 : x - Step 2: Convert to fraction form
118,340.21/163,308.41 = 64,625.06/x - Step 3: Cross multiply
118,340.21x = 163,308.41 × 64,625.06 - Step 4: Simplify right side
118,340.21x = 10,553,815,794.75 - Step 5: Solve for x
x = 10,553,815,794.75/118,340.21 - Step 6: Final answer
x = 89,181.99
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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.