Finding the Fourth Proportional to 135,797.67, 187,423.29 and 79,209.03
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Solution
The fourth proportional to 135,797.67, 187,423.29 and 79,209.03 is: 109,321.59
Step by Step Solution
- Step 1: Write the proportion equation
135,797.67 : 187,423.29 = 79,209.03 : x - Step 2: Convert to fraction form
135,797.67/187,423.29 = 79,209.03/x - Step 3: Cross multiply
135,797.67x = 187,423.29 × 79,209.03 - Step 4: Simplify right side
135,797.67x = 14,845,617,000.31 - Step 5: Solve for x
x = 14,845,617,000.31/135,797.67 - Step 6: Final answer
x = 109,321.59
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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.