Finding the Fourth Proportional to 166,684.80, 230,023.08 and 90,202.12
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Solution
The fourth proportional to 166,684.80, 230,023.08 and 90,202.12 is: 124,477.88
Step by Step Solution
- Step 1: Write the proportion equation
166,684.80 : 230,023.08 = 90,202.12 : x - Step 2: Convert to fraction form
166,684.80/230,023.08 = 90,202.12/x - Step 3: Cross multiply
166,684.80x = 230,023.08 × 90,202.12 - Step 4: Simplify right side
166,684.80x = 20,748,570,190.10 - Step 5: Solve for x
x = 20,748,570,190.10/166,684.80 - Step 6: Final answer
x = 124,477.88
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1.5x scale
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.