Finding the Fourth Proportional to 167,261.97, 230,819.55 and 90,781.20
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Solution
The fourth proportional to 167,261.97, 230,819.55 and 90,781.20 is: 125,276.99
Step by Step Solution
- Step 1: Write the proportion equation
167,261.97 : 230,819.55 = 90,781.20 : x - Step 2: Convert to fraction form
167,261.97/230,819.55 = 90,781.20/x - Step 3: Cross multiply
167,261.97x = 230,819.55 × 90,781.20 - Step 4: Simplify right side
167,261.97x = 20,954,075,732.46 - Step 5: Solve for x
x = 20,954,075,732.46/167,261.97 - Step 6: Final answer
x = 125,276.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.