Finding the Fourth Proportional to 117,977.80, 176,966.70 and 106,313.80
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Solution
The fourth proportional to 117,977.80, 176,966.70 and 106,313.80 is: 159,470.70
Step by Step Solution
- Step 1: Write the proportion equation
117,977.80 : 176,966.70 = 106,313.80 : x - Step 2: Convert to fraction form
117,977.80/176,966.70 = 106,313.80/x - Step 3: Cross multiply
117,977.80x = 176,966.70 × 106,313.80 - Step 4: Simplify right side
117,977.80x = 18,814,002,350.46 - Step 5: Solve for x
x = 18,814,002,350.46/117,977.80 - Step 6: Final answer
x = 159,470.70
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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.