Finding the Fourth Proportional to 112,703.63, 155,535.87 and 62,402.63
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Solution
The fourth proportional to 112,703.63, 155,535.87 and 62,402.63 is: 86,118.32
Step by Step Solution
- Step 1: Write the proportion equation
112,703.63 : 155,535.87 = 62,402.63 : x - Step 2: Convert to fraction form
112,703.63/155,535.87 = 62,402.63/x - Step 3: Cross multiply
112,703.63x = 155,535.87 × 62,402.63 - Step 4: Simplify right side
112,703.63x = 9,705,846,569.66 - Step 5: Solve for x
x = 9,705,846,569.66/112,703.63 - Step 6: Final answer
x = 86,118.32
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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.