Finding the Fourth Proportional to 168,457.30, 232,471.56 and 91,977.05
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Solution
The fourth proportional to 168,457.30, 232,471.56 and 91,977.05 is: 126,928.60
Step by Step Solution
- Step 1: Write the proportion equation
168,457.30 : 232,471.56 = 91,977.05 : x - Step 2: Convert to fraction form
168,457.30/232,471.56 = 91,977.05/x - Step 3: Cross multiply
168,457.30x = 232,471.56 × 91,977.05 - Step 4: Simplify right side
168,457.30x = 21,382,048,533.96 - Step 5: Solve for x
x = 21,382,048,533.96/168,457.30 - Step 6: Final answer
x = 126,928.60
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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.