Finding the Fourth Proportional to 98,197.75, 135,512.90 and 53,485.75
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Solution
The fourth proportional to 98,197.75, 135,512.90 and 53,485.75 is: 73,810.34
Step by Step Solution
- Step 1: Write the proportion equation
98,197.75 : 135,512.90 = 53,485.75 : x - Step 2: Convert to fraction form
98,197.75/135,512.90 = 53,485.75/x - Step 3: Cross multiply
98,197.75x = 135,512.90 × 53,485.75 - Step 4: Simplify right side
98,197.75x = 7,248,009,091.18 - Step 5: Solve for x
x = 7,248,009,091.18/98,197.75 - Step 6: Final answer
x = 73,810.34
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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.