Finding the Fourth Proportional to 115,355.68, 159,203.12 and 67,649.12
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Solution
The fourth proportional to 115,355.68, 159,203.12 and 67,649.12 is: 93,362.99
Step by Step Solution
- Step 1: Write the proportion equation
115,355.68 : 159,203.12 = 67,649.12 : x - Step 2: Convert to fraction form
115,355.68/159,203.12 = 67,649.12/x - Step 3: Cross multiply
115,355.68x = 159,203.12 × 67,649.12 - Step 4: Simplify right side
115,355.68x = 10,769,950,969.25 - Step 5: Solve for x
x = 10,769,950,969.25/115,355.68 - Step 6: Final answer
x = 93,362.99
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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.