Finding the Fourth Proportional to 135,796.17, 187,421.22 and 79,207.53
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Solution
The fourth proportional to 135,796.17, 187,421.22 and 79,207.53 is: 109,319.52
Step by Step Solution
- Step 1: Write the proportion equation
135,796.17 : 187,421.22 = 79,207.53 : x - Step 2: Convert to fraction form
135,796.17/187,421.22 = 79,207.53/x - Step 3: Cross multiply
135,796.17x = 187,421.22 × 79,207.53 - Step 4: Simplify right side
135,796.17x = 14,845,171,905.79 - Step 5: Solve for x
x = 14,845,171,905.79/135,796.17 - Step 6: Final answer
x = 109,319.52
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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.