Finding the Fourth Proportional to 145,987.94, 201,428.85 and 88,625.78
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Solution
The fourth proportional to 145,987.94, 201,428.85 and 88,625.78 is: 122,282.63
Step by Step Solution
- Step 1: Write the proportion equation
145,987.94 : 201,428.85 = 88,625.78 : x - Step 2: Convert to fraction form
145,987.94/201,428.85 = 88,625.78/x - Step 3: Cross multiply
145,987.94x = 201,428.85 × 88,625.78 - Step 4: Simplify right side
145,987.94x = 17,851,788,945.75 - Step 5: Solve for x
x = 17,851,788,945.75/145,987.94 - Step 6: Final answer
x = 122,282.63
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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.