Finding the Fourth Proportional to 118,710.60, 178,065.36 and 48,589.98
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Solution
The fourth proportional to 118,710.60, 178,065.36 and 48,589.98 is: 72,884.75
Step by Step Solution
- Step 1: Write the proportion equation
118,710.60 : 178,065.36 = 48,589.98 : x - Step 2: Convert to fraction form
118,710.60/178,065.36 = 48,589.98/x - Step 3: Cross multiply
118,710.60x = 178,065.36 × 48,589.98 - Step 4: Simplify right side
118,710.60x = 8,652,192,281.09 - Step 5: Solve for x
x = 8,652,192,281.09/118,710.60 - Step 6: Final answer
x = 72,884.75
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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.