Finding the Fourth Proportional to 153,852.20, 230,843.10 and 83,781.80
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Solution
The fourth proportional to 153,852.20, 230,843.10 and 83,781.80 is: 125,707.99
Step by Step Solution
- Step 1: Write the proportion equation
153,852.20 : 230,843.10 = 83,781.80 : x - Step 2: Convert to fraction form
153,852.20/230,843.10 = 83,781.80/x - Step 3: Cross multiply
153,852.20x = 230,843.10 × 83,781.80 - Step 4: Simplify right side
153,852.20x = 19,340,450,435.58 - Step 5: Solve for x
x = 19,340,450,435.58/153,852.20 - Step 6: Final answer
x = 125,707.99
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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.