Finding the Fourth Proportional to 117,189.64, 175,484.17 and 81,116.08
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Solution
The fourth proportional to 117,189.64, 175,484.17 and 81,116.08 is: 121,466.28
Step by Step Solution
- Step 1: Write the proportion equation
117,189.64 : 175,484.17 = 81,116.08 : x - Step 2: Convert to fraction form
117,189.64/175,484.17 = 81,116.08/x - Step 3: Cross multiply
117,189.64x = 175,484.17 × 81,116.08 - Step 4: Simplify right side
117,189.64x = 14,234,588,622.24 - Step 5: Solve for x
x = 14,234,588,622.24/117,189.64 - Step 6: Final answer
x = 121,466.28
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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.