Finding the Fourth Proportional to 113,497.80, 170,246.70 and 99,673.80
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Solution
The fourth proportional to 113,497.80, 170,246.70 and 99,673.80 is: 149,510.70
Step by Step Solution
- Step 1: Write the proportion equation
113,497.80 : 170,246.70 = 99,673.80 : x - Step 2: Convert to fraction form
113,497.80/170,246.70 = 99,673.80/x - Step 3: Cross multiply
113,497.80x = 170,246.70 × 99,673.80 - Step 4: Simplify right side
113,497.80x = 16,969,135,526.46 - Step 5: Solve for x
x = 16,969,135,526.46/113,497.80 - Step 6: Final answer
x = 149,510.70
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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.