Finding the Fourth Proportional to 118,226.20, 177,339.30 and 91,787.80
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Solution
The fourth proportional to 118,226.20, 177,339.30 and 91,787.80 is: 137,681.70
Step by Step Solution
- Step 1: Write the proportion equation
118,226.20 : 177,339.30 = 91,787.80 : x - Step 2: Convert to fraction form
118,226.20/177,339.30 = 91,787.80/x - Step 3: Cross multiply
118,226.20x = 177,339.30 × 91,787.80 - Step 4: Simplify right side
118,226.20x = 16,277,584,200.54 - Step 5: Solve for x
x = 16,277,584,200.54/118,226.20 - Step 6: Final answer
x = 137,681.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.