Finding the Fourth Proportional to 106,140.36, 146,437.26 and 65,839.62
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Solution
The fourth proportional to 106,140.36, 146,437.26 and 65,839.62 is: 90,836.07
Step by Step Solution
- Step 1: Write the proportion equation
106,140.36 : 146,437.26 = 65,839.62 : x - Step 2: Convert to fraction form
106,140.36/146,437.26 = 65,839.62/x - Step 3: Cross multiply
106,140.36x = 146,437.26 × 65,839.62 - Step 4: Simplify right side
106,140.36x = 9,641,373,552.24 - Step 5: Solve for x
x = 9,641,373,552.24/106,140.36 - Step 6: Final answer
x = 90,836.07
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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.