Finding the Fourth Proportional to 104,389.80, 156,612.99 and 74,441.88
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Solution
The fourth proportional to 104,389.80, 156,612.99 and 74,441.88 is: 111,682.99
Step by Step Solution
- Step 1: Write the proportion equation
104,389.80 : 156,612.99 = 74,441.88 : x - Step 2: Convert to fraction form
104,389.80/156,612.99 = 74,441.88/x - Step 3: Cross multiply
104,389.80x = 156,612.99 × 74,441.88 - Step 4: Simplify right side
104,389.80x = 11,658,565,408.02 - Step 5: Solve for x
x = 11,658,565,408.02/104,389.80 - Step 6: Final answer
x = 111,682.99
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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.