Finding the Fourth Proportional to 117,750.13, 162,438.07 and 69,969.64
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Solution
The fourth proportional to 117,750.13, 162,438.07 and 69,969.64 is: 96,524.17
Step by Step Solution
- Step 1: Write the proportion equation
117,750.13 : 162,438.07 = 69,969.64 : x - Step 2: Convert to fraction form
117,750.13/162,438.07 = 69,969.64/x - Step 3: Cross multiply
117,750.13x = 162,438.07 × 69,969.64 - Step 4: Simplify right side
117,750.13x = 11,365,733,280.19 - Step 5: Solve for x
x = 11,365,733,280.19/117,750.13 - Step 6: Final answer
x = 96,524.17
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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.