Finding the Fourth Proportional to 167,778.12, 251,646.21 and 55,431.17
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Solution
The fourth proportional to 167,778.12, 251,646.21 and 55,431.17 is: 83,139.82
Step by Step Solution
- Step 1: Write the proportion equation
167,778.12 : 251,646.21 = 55,431.17 : x - Step 2: Convert to fraction form
167,778.12/251,646.21 = 55,431.17/x - Step 3: Cross multiply
167,778.12x = 251,646.21 × 55,431.17 - Step 4: Simplify right side
167,778.12x = 13,949,042,588.13 - Step 5: Solve for x
x = 13,949,042,588.13/167,778.12 - Step 6: Final answer
x = 83,139.82
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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.