Finding the Fourth Proportional to 145,913.08, 201,360.18 and 78,845.08
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Solution
The fourth proportional to 145,913.08, 201,360.18 and 78,845.08 is: 108,806.28
Step by Step Solution
- Step 1: Write the proportion equation
145,913.08 : 201,360.18 = 78,845.08 : x - Step 2: Convert to fraction form
145,913.08/201,360.18 = 78,845.08/x - Step 3: Cross multiply
145,913.08x = 201,360.18 × 78,845.08 - Step 4: Simplify right side
145,913.08x = 15,876,259,500.91 - Step 5: Solve for x
x = 15,876,259,500.91/145,913.08 - Step 6: Final answer
x = 108,806.28
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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.