Finding the Fourth Proportional to 138,336.77, 207,591.12 and 125,025.84
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Solution
The fourth proportional to 138,336.77, 207,591.12 and 125,025.84 is: 187,616.45
Step by Step Solution
- Step 1: Write the proportion equation
138,336.77 : 207,591.12 = 125,025.84 : x - Step 2: Convert to fraction form
138,336.77/207,591.12 = 125,025.84/x - Step 3: Cross multiply
138,336.77x = 207,591.12 × 125,025.84 - Step 4: Simplify right side
138,336.77x = 25,954,254,154.54 - Step 5: Solve for x
x = 25,954,254,154.54/138,336.77 - Step 6: Final answer
x = 187,616.45
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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.