Finding the Fourth Proportional to 117,615.20, 176,444.58 and 55,285.70
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Solution
The fourth proportional to 117,615.20, 176,444.58 and 55,285.70 is: 82,938.79
Step by Step Solution
- Step 1: Write the proportion equation
117,615.20 : 176,444.58 = 55,285.70 : x - Step 2: Convert to fraction form
117,615.20/176,444.58 = 55,285.70/x - Step 3: Cross multiply
117,615.20x = 176,444.58 × 55,285.70 - Step 4: Simplify right side
117,615.20x = 9,754,862,116.51 - Step 5: Solve for x
x = 9,754,862,116.51/117,615.20 - Step 6: Final answer
x = 82,938.79
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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.