Finding the Fourth Proportional to 167,817.28, 251,813.68 and 67,988.08
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Solution
The fourth proportional to 167,817.28, 251,813.68 and 67,988.08 is: 102,017.67
Step by Step Solution
- Step 1: Write the proportion equation
167,817.28 : 251,813.68 = 67,988.08 : x - Step 2: Convert to fraction form
167,817.28/251,813.68 = 67,988.08/x - Step 3: Cross multiply
167,817.28x = 251,813.68 × 67,988.08 - Step 4: Simplify right side
167,817.28x = 17,120,328,620.93 - Step 5: Solve for x
x = 17,120,328,620.93/167,817.28 - Step 6: Final answer
x = 102,017.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.