Finding the Fourth Proportional to 149,014.36, 205,669.02 and 85,394.80
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Solution
The fourth proportional to 149,014.36, 205,669.02 and 85,394.80 is: 117,861.56
Step by Step Solution
- Step 1: Write the proportion equation
149,014.36 : 205,669.02 = 85,394.80 : x - Step 2: Convert to fraction form
149,014.36/205,669.02 = 85,394.80/x - Step 3: Cross multiply
149,014.36x = 205,669.02 × 85,394.80 - Step 4: Simplify right side
149,014.36x = 17,563,064,829.10 - Step 5: Solve for x
x = 17,563,064,829.10/149,014.36 - Step 6: Final answer
x = 117,861.56
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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.