Finding the Fourth Proportional to 136,911.71, 188,723.81 and 125,913.83
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Solution
The fourth proportional to 136,911.71, 188,723.81 and 125,913.83 is: 173,563.95
Step by Step Solution
- Step 1: Write the proportion equation
136,911.71 : 188,723.81 = 125,913.83 : x - Step 2: Convert to fraction form
136,911.71/188,723.81 = 125,913.83/x - Step 3: Cross multiply
136,911.71x = 188,723.81 × 125,913.83 - Step 4: Simplify right side
136,911.71x = 23,762,936,156.10 - Step 5: Solve for x
x = 23,762,936,156.10/136,911.71 - Step 6: Final answer
x = 173,563.95
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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.