Finding the Fourth Proportional to 121,420.10, 182,130.15 and 110,533.70
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Solution
The fourth proportional to 121,420.10, 182,130.15 and 110,533.70 is: 165,800.55
Step by Step Solution
- Step 1: Write the proportion equation
121,420.10 : 182,130.15 = 110,533.70 : x - Step 2: Convert to fraction form
121,420.10/182,130.15 = 110,533.70/x - Step 3: Cross multiply
121,420.10x = 182,130.15 × 110,533.70 - Step 4: Simplify right side
121,420.10x = 20,131,519,361.06 - Step 5: Solve for x
x = 20,131,519,361.06/121,420.10 - Step 6: Final answer
x = 165,800.55
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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.