Finding the Fourth Proportional to 117,945.99, 162,762.48 and 67,641.75
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Solution
The fourth proportional to 117,945.99, 162,762.48 and 67,641.75 is: 93,343.90
Step by Step Solution
- Step 1: Write the proportion equation
117,945.99 : 162,762.48 = 67,641.75 : x - Step 2: Convert to fraction form
117,945.99/162,762.48 = 67,641.75/x - Step 3: Cross multiply
117,945.99x = 162,762.48 × 67,641.75 - Step 4: Simplify right side
117,945.99x = 11,009,538,981.54 - Step 5: Solve for x
x = 11,009,538,981.54/117,945.99 - Step 6: Final answer
x = 93,343.90
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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.