Finding the Fourth Proportional to 118,775.37, 163,912.65 and 67,787.09
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Solution
The fourth proportional to 118,775.37, 163,912.65 and 67,787.09 is: 93,547.68
Step by Step Solution
- Step 1: Write the proportion equation
118,775.37 : 163,912.65 = 67,787.09 : x - Step 2: Convert to fraction form
118,775.37/163,912.65 = 67,787.09/x - Step 3: Cross multiply
118,775.37x = 163,912.65 × 67,787.09 - Step 4: Simplify right side
118,775.37x = 11,111,160,738.13 - Step 5: Solve for x
x = 11,111,160,738.13/118,775.37 - Step 6: Final answer
x = 93,547.68
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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.