Finding the Fourth Proportional to 136,403.01, 188,242.02 and 75,973.68
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Solution
The fourth proportional to 136,403.01, 188,242.02 and 75,973.68 is: 104,846.95
Step by Step Solution
- Step 1: Write the proportion equation
136,403.01 : 188,242.02 = 75,973.68 : x - Step 2: Convert to fraction form
136,403.01/188,242.02 = 75,973.68/x - Step 3: Cross multiply
136,403.01x = 188,242.02 × 75,973.68 - Step 4: Simplify right side
136,403.01x = 14,301,438,990.03 - Step 5: Solve for x
x = 14,301,438,990.03/136,403.01 - Step 6: Final answer
x = 104,846.95
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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.