Finding the Fourth Proportional to 185,716.36, 256,290.42 and 100,834.12
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Solution
The fourth proportional to 185,716.36, 256,290.42 and 100,834.12 is: 139,152.09
Step by Step Solution
- Step 1: Write the proportion equation
185,716.36 : 256,290.42 = 100,834.12 : x - Step 2: Convert to fraction form
185,716.36/256,290.42 = 100,834.12/x - Step 3: Cross multiply
185,716.36x = 256,290.42 × 100,834.12 - Step 4: Simplify right side
185,716.36x = 25,842,818,965.13 - Step 5: Solve for x
x = 25,842,818,965.13/185,716.36 - Step 6: Final answer
x = 139,152.09
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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.