Finding the Fourth Proportional to 118,129.80, 177,194.70 and 55,921.80
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Solution
The fourth proportional to 118,129.80, 177,194.70 and 55,921.80 is: 83,882.70
Step by Step Solution
- Step 1: Write the proportion equation
118,129.80 : 177,194.70 = 55,921.80 : x - Step 2: Convert to fraction form
118,129.80/177,194.70 = 55,921.80/x - Step 3: Cross multiply
118,129.80x = 177,194.70 × 55,921.80 - Step 4: Simplify right side
118,129.80x = 9,909,046,574.46 - Step 5: Solve for x
x = 9,909,046,574.46/118,129.80 - Step 6: Final answer
x = 83,882.70
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1.5x scale
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.