Finding the Fourth Proportional to 145,065.56, 217,660.26 and 81,933.08
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Solution
The fourth proportional to 145,065.56, 217,660.26 and 81,933.08 is: 122,934.59
Step by Step Solution
- Step 1: Write the proportion equation
145,065.56 : 217,660.26 = 81,933.08 : x - Step 2: Convert to fraction form
145,065.56/217,660.26 = 81,933.08/x - Step 3: Cross multiply
145,065.56x = 217,660.26 × 81,933.08 - Step 4: Simplify right side
145,065.56x = 17,833,575,495.40 - Step 5: Solve for x
x = 17,833,575,495.40/145,065.56 - Step 6: Final answer
x = 122,934.59
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1.5x scale
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.