Finding the Fourth Proportional to 118,117.20, 177,175.80 and 118,117.20
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Solution
The fourth proportional to 118,117.20, 177,175.80 and 118,117.20 is: 177,175.80
Step by Step Solution
- Step 1: Write the proportion equation
118,117.20 : 177,175.80 = 118,117.20 : x - Step 2: Convert to fraction form
118,117.20/177,175.80 = 118,117.20/x - Step 3: Cross multiply
118,117.20x = 177,175.80 × 118,117.20 - Step 4: Simplify right side
118,117.20x = 20,927,509,403.76 - Step 5: Solve for x
x = 20,927,509,403.76/118,117.20 - Step 6: Final answer
x = 177,175.80
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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.