Finding the Fourth Proportional to 134,693.40, 202,331.70 and 129,736.20
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Solution
The fourth proportional to 134,693.40, 202,331.70 and 129,736.20 is: 194,885.17
Step by Step Solution
- Step 1: Write the proportion equation
134,693.40 : 202,331.70 = 129,736.20 : x - Step 2: Convert to fraction form
134,693.40/202,331.70 = 129,736.20/x - Step 3: Cross multiply
134,693.40x = 202,331.70 × 129,736.20 - Step 4: Simplify right side
134,693.40x = 26,249,745,897.54 - Step 5: Solve for x
x = 26,249,745,897.54/134,693.40 - Step 6: Final answer
x = 194,885.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.