Finding the Fourth Proportional to 112,574.19, 155,352.33 and 64,836.75
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Solution
The fourth proportional to 112,574.19, 155,352.33 and 64,836.75 is: 89,474.68
Step by Step Solution
- Step 1: Write the proportion equation
112,574.19 : 155,352.33 = 64,836.75 : x - Step 2: Convert to fraction form
112,574.19/155,352.33 = 64,836.75/x - Step 3: Cross multiply
112,574.19x = 155,352.33 × 64,836.75 - Step 4: Simplify right side
112,574.19x = 10,072,540,182.13 - Step 5: Solve for x
x = 10,072,540,182.13/112,574.19 - Step 6: Final answer
x = 89,474.68
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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.