Finding the Fourth Proportional to 141,148.14, 194,783.58 and 76,618.68
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Solution
The fourth proportional to 141,148.14, 194,783.58 and 76,618.68 is: 105,733.32
Step by Step Solution
- Step 1: Write the proportion equation
141,148.14 : 194,783.58 = 76,618.68 : x - Step 2: Convert to fraction form
141,148.14/194,783.58 = 76,618.68/x - Step 3: Cross multiply
141,148.14x = 194,783.58 × 76,618.68 - Step 4: Simplify right side
141,148.14x = 14,924,060,785.27 - Step 5: Solve for x
x = 14,924,060,785.27/141,148.14 - Step 6: Final answer
x = 105,733.32
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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.