Finding the Fourth Proportional to 142,466.68, 197,503.11 and 134,882.68
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Solution
The fourth proportional to 142,466.68, 197,503.11 and 134,882.68 is: 186,989.33
Step by Step Solution
- Step 1: Write the proportion equation
142,466.68 : 197,503.11 = 134,882.68 : x - Step 2: Convert to fraction form
142,466.68/197,503.11 = 134,882.68/x - Step 3: Cross multiply
142,466.68x = 197,503.11 × 134,882.68 - Step 4: Simplify right side
142,466.68x = 26,639,748,785.13 - Step 5: Solve for x
x = 26,639,748,785.13/142,466.68 - Step 6: Final answer
x = 186,989.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.