Finding the Fourth Proportional to 147,812.75, 203,981.52 and 79,829.73
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Solution
The fourth proportional to 147,812.75, 203,981.52 and 79,829.73 is: 110,164.99
Step by Step Solution
- Step 1: Write the proportion equation
147,812.75 : 203,981.52 = 79,829.73 : x - Step 2: Convert to fraction form
147,812.75/203,981.52 = 79,829.73/x - Step 3: Cross multiply
147,812.75x = 203,981.52 × 79,829.73 - Step 4: Simplify right side
147,812.75x = 16,283,789,666.59 - Step 5: Solve for x
x = 16,283,789,666.59/147,812.75 - Step 6: Final answer
x = 110,164.99
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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.