Finding the Fourth Proportional to 145,921.74, 201,371.65 and 82,259.07
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Solution
The fourth proportional to 145,921.74, 201,371.65 and 82,259.07 is: 113,517.32
Step by Step Solution
- Step 1: Write the proportion equation
145,921.74 : 201,371.65 = 82,259.07 : x - Step 2: Convert to fraction form
145,921.74/201,371.65 = 82,259.07/x - Step 3: Cross multiply
145,921.74x = 201,371.65 × 82,259.07 - Step 4: Simplify right side
145,921.74x = 16,564,644,653.37 - Step 5: Solve for x
x = 16,564,644,653.37/145,921.74 - Step 6: Final answer
x = 113,517.32
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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.