Finding the Fourth Proportional to 110,000.12, 164,916.42 and 60,122.84
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Solution
The fourth proportional to 110,000.12, 164,916.42 and 60,122.84 is: 90,138.48
Step by Step Solution
- Step 1: Write the proportion equation
110,000.12 : 164,916.42 = 60,122.84 : x - Step 2: Convert to fraction form
110,000.12/164,916.42 = 60,122.84/x - Step 3: Cross multiply
110,000.12x = 164,916.42 × 60,122.84 - Step 4: Simplify right side
110,000.12x = 9,915,243,533.03 - Step 5: Solve for x
x = 9,915,243,533.03/110,000.12 - Step 6: Final answer
x = 90,138.48
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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.