Finding the Fourth Proportional to 106,815.60, 147,405.98 and 58,418.48
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Solution
The fourth proportional to 106,815.60, 147,405.98 and 58,418.48 is: 80,617.75
Step by Step Solution
- Step 1: Write the proportion equation
106,815.60 : 147,405.98 = 58,418.48 : x - Step 2: Convert to fraction form
106,815.60/147,405.98 = 58,418.48/x - Step 3: Cross multiply
106,815.60x = 147,405.98 × 58,418.48 - Step 4: Simplify right side
106,815.60x = 8,611,233,294.51 - Step 5: Solve for x
x = 8,611,233,294.51/106,815.60 - Step 6: Final answer
x = 80,617.75
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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.