Finding the Fourth Proportional to 145,077.80, 217,616.70 and 125,637.80
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Solution
The fourth proportional to 145,077.80, 217,616.70 and 125,637.80 is: 188,456.70
Step by Step Solution
- Step 1: Write the proportion equation
145,077.80 : 217,616.70 = 125,637.80 : x - Step 2: Convert to fraction form
145,077.80/217,616.70 = 125,637.80/x - Step 3: Cross multiply
145,077.80x = 217,616.70 × 125,637.80 - Step 4: Simplify right side
145,077.80x = 27,340,883,431.26 - Step 5: Solve for x
x = 27,340,883,431.26/145,077.80 - Step 6: Final answer
x = 188,456.70
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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.