Finding the Fourth Proportional to 112,787.04, 155,645.92 and 62,486.08
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Solution
The fourth proportional to 112,787.04, 155,645.92 and 62,486.08 is: 86,230.68
Step by Step Solution
- Step 1: Write the proportion equation
112,787.04 : 155,645.92 = 62,486.08 : x - Step 2: Convert to fraction form
112,787.04/155,645.92 = 62,486.08/x - Step 3: Cross multiply
112,787.04x = 155,645.92 × 62,486.08 - Step 4: Simplify right side
112,787.04x = 9,725,703,408.79 - Step 5: Solve for x
x = 9,725,703,408.79/112,787.04 - Step 6: Final answer
x = 86,230.68
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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.