Finding the Fourth Proportional to 146,431.08, 202,073.54 and 81,899.53
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Solution
The fourth proportional to 146,431.08, 202,073.54 and 81,899.53 is: 113,020.59
Step by Step Solution
- Step 1: Write the proportion equation
146,431.08 : 202,073.54 = 81,899.53 : x - Step 2: Convert to fraction form
146,431.08/202,073.54 = 81,899.53/x - Step 3: Cross multiply
146,431.08x = 202,073.54 × 81,899.53 - Step 4: Simplify right side
146,431.08x = 16,549,727,036.75 - Step 5: Solve for x
x = 16,549,727,036.75/146,431.08 - Step 6: Final answer
x = 113,020.59
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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.