Finding the Fourth Proportional to 91,195.52, 125,902.14 and 69,515.06
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Solution
The fourth proportional to 91,195.52, 125,902.14 and 69,515.06 is: 95,970.67
Step by Step Solution
- Step 1: Write the proportion equation
91,195.52 : 125,902.14 = 69,515.06 : x - Step 2: Convert to fraction form
91,195.52/125,902.14 = 69,515.06/x - Step 3: Cross multiply
91,195.52x = 125,902.14 × 69,515.06 - Step 4: Simplify right side
91,195.52x = 8,752,094,816.23 - Step 5: Solve for x
x = 8,752,094,816.23/91,195.52 - Step 6: Final answer
x = 95,970.67
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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.