Finding the Fourth Proportional to 134,644.66, 185,798.70 and 78,059.68
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Solution
The fourth proportional to 134,644.66, 185,798.70 and 78,059.68 is: 107,716.02
Step by Step Solution
- Step 1: Write the proportion equation
134,644.66 : 185,798.70 = 78,059.68 : x - Step 2: Convert to fraction form
134,644.66/185,798.70 = 78,059.68/x - Step 3: Cross multiply
134,644.66x = 185,798.70 × 78,059.68 - Step 4: Simplify right side
134,644.66x = 14,503,387,066.42 - Step 5: Solve for x
x = 14,503,387,066.42/134,644.66 - Step 6: Final answer
x = 107,716.02
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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.