Finding the Fourth Proportional to 145,153.92, 217,697.76 and 39,982.08
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Solution
The fourth proportional to 145,153.92, 217,697.76 and 39,982.08 is: 59,964.00
Step by Step Solution
- Step 1: Write the proportion equation
145,153.92 : 217,697.76 = 39,982.08 : x - Step 2: Convert to fraction form
145,153.92/217,697.76 = 39,982.08/x - Step 3: Cross multiply
145,153.92x = 217,697.76 × 39,982.08 - Step 4: Simplify right side
145,153.92x = 8,704,009,256.14 - Step 5: Solve for x
x = 8,704,009,256.14/145,153.92 - Step 6: Final answer
x = 59,964.00
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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.