Finding the Fourth Proportional to 149,014.98, 205,648.74 and 85,350.60
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Solution
The fourth proportional to 149,014.98, 205,648.74 and 85,350.60 is: 117,788.45
Step by Step Solution
- Step 1: Write the proportion equation
149,014.98 : 205,648.74 = 85,350.60 : x - Step 2: Convert to fraction form
149,014.98/205,648.74 = 85,350.60/x - Step 3: Cross multiply
149,014.98x = 205,648.74 × 85,350.60 - Step 4: Simplify right side
149,014.98x = 17,552,243,348.24 - Step 5: Solve for x
x = 17,552,243,348.24/149,014.98 - Step 6: Final answer
x = 117,788.45
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1.5x scale
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.