Finding the Fourth Proportional to 96,449.82, 133,135.68 and 78,513.68
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Solution
The fourth proportional to 96,449.82, 133,135.68 and 78,513.68 is: 108,377.32
Step by Step Solution
- Step 1: Write the proportion equation
96,449.82 : 133,135.68 = 78,513.68 : x - Step 2: Convert to fraction form
96,449.82/133,135.68 = 78,513.68/x - Step 3: Cross multiply
96,449.82x = 133,135.68 × 78,513.68 - Step 4: Simplify right side
96,449.82x = 10,452,972,803.37 - Step 5: Solve for x
x = 10,452,972,803.37/96,449.82 - Step 6: Final answer
x = 108,377.32
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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.