Finding the Fourth Proportional to 68,753.45, 103,130.26 and 18,833.98
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Solution
The fourth proportional to 68,753.45, 103,130.26 and 18,833.98 is: 28,250.99
Step by Step Solution
- Step 1: Write the proportion equation
68,753.45 : 103,130.26 = 18,833.98 : x - Step 2: Convert to fraction form
68,753.45/103,130.26 = 18,833.98/x - Step 3: Cross multiply
68,753.45x = 103,130.26 × 18,833.98 - Step 4: Simplify right side
68,753.45x = 1,942,353,254.23 - Step 5: Solve for x
x = 1,942,353,254.23/68,753.45 - Step 6: Final answer
x = 28,250.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.