Finding the Fourth Proportional to 109,516.84, 151,155.12 and 61,771.12
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Solution
The fourth proportional to 109,516.84, 151,155.12 and 61,771.12 is: 85,256.49
Step by Step Solution
- Step 1: Write the proportion equation
109,516.84 : 151,155.12 = 61,771.12 : x - Step 2: Convert to fraction form
109,516.84/151,155.12 = 61,771.12/x - Step 3: Cross multiply
109,516.84x = 151,155.12 × 61,771.12 - Step 4: Simplify right side
109,516.84x = 9,337,021,056.13 - Step 5: Solve for x
x = 9,337,021,056.13/109,516.84 - Step 6: Final answer
x = 85,256.49
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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.