Finding the Fourth Proportional to 145,987.44, 201,428.16 and 88,625.28
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Solution
The fourth proportional to 145,987.44, 201,428.16 and 88,625.28 is: 122,281.94
Step by Step Solution
- Step 1: Write the proportion equation
145,987.44 : 201,428.16 = 88,625.28 : x - Step 2: Convert to fraction form
145,987.44/201,428.16 = 88,625.28/x - Step 3: Cross multiply
145,987.44x = 201,428.16 × 88,625.28 - Step 4: Simplify right side
145,987.44x = 17,851,627,079.88 - Step 5: Solve for x
x = 17,851,627,079.88/145,987.44 - Step 6: Final answer
x = 122,281.94
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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.