Finding the Fourth Proportional to 149,025.76, 205,657.99 and 81,044.08
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Solution
The fourth proportional to 149,025.76, 205,657.99 and 81,044.08 is: 111,842.16
Step by Step Solution
- Step 1: Write the proportion equation
149,025.76 : 205,657.99 = 81,044.08 : x - Step 2: Convert to fraction form
149,025.76/205,657.99 = 81,044.08/x - Step 3: Cross multiply
149,025.76x = 205,657.99 × 81,044.08 - Step 4: Simplify right side
149,025.76x = 16,667,361,877.44 - Step 5: Solve for x
x = 16,667,361,877.44/149,025.76 - Step 6: Final answer
x = 111,842.16
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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.