Finding the Fourth Proportional to 180,724.10, 249,399.90 and 100,152.99
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Solution
The fourth proportional to 180,724.10, 249,399.90 and 100,152.99 is: 138,211.49
Step by Step Solution
- Step 1: Write the proportion equation
180,724.10 : 249,399.90 = 100,152.99 : x - Step 2: Convert to fraction form
180,724.10/249,399.90 = 100,152.99/x - Step 3: Cross multiply
180,724.10x = 249,399.90 × 100,152.99 - Step 4: Simplify right side
180,724.10x = 24,978,145,690.70 - Step 5: Solve for x
x = 24,978,145,690.70/180,724.10 - Step 6: Final answer
x = 138,211.49
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1.5x scale
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.