Finding the Fourth Proportional to 137,107.60, 205,660.99 and 48,339.70
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Solution
The fourth proportional to 137,107.60, 205,660.99 and 48,339.70 is: 72,509.40
Step by Step Solution
- Step 1: Write the proportion equation
137,107.60 : 205,660.99 = 48,339.70 : x - Step 2: Convert to fraction form
137,107.60/205,660.99 = 48,339.70/x - Step 3: Cross multiply
137,107.60x = 205,660.99 × 48,339.70 - Step 4: Simplify right side
137,107.60x = 9,941,589,288.30 - Step 5: Solve for x
x = 9,941,589,288.30/137,107.60 - Step 6: Final answer
x = 72,509.40
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1.5x scale
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.