Finding the Fourth Proportional to 146,209.12, 201,948.51 and 105,858.97
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Solution
The fourth proportional to 146,209.12, 201,948.51 and 105,858.97 is: 146,215.65
Step by Step Solution
- Step 1: Write the proportion equation
146,209.12 : 201,948.51 = 105,858.97 : x - Step 2: Convert to fraction form
146,209.12/201,948.51 = 105,858.97/x - Step 3: Cross multiply
146,209.12x = 201,948.51 × 105,858.97 - Step 4: Simplify right side
146,209.12x = 21,378,061,261.63 - Step 5: Solve for x
x = 21,378,061,261.63/146,209.12 - Step 6: Final answer
x = 146,215.65
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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.