Finding the Fourth Proportional to 154,140.52, 230,629.40 and 90,994.99
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Solution
The fourth proportional to 154,140.52, 230,629.40 and 90,994.99 is: 136,149.27
Step by Step Solution
- Step 1: Write the proportion equation
154,140.52 : 230,629.40 = 90,994.99 : x - Step 2: Convert to fraction form
154,140.52/230,629.40 = 90,994.99/x - Step 3: Cross multiply
154,140.52x = 230,629.40 × 90,994.99 - Step 4: Simplify right side
154,140.52x = 20,986,119,946.71 - Step 5: Solve for x
x = 20,986,119,946.71/154,140.52 - Step 6: Final answer
x = 136,149.27
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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.