Finding the Fourth Proportional to 149,574.68, 206,409.76 and 82,506.68
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Solution
The fourth proportional to 149,574.68, 206,409.76 and 82,506.68 is: 113,857.40
Step by Step Solution
- Step 1: Write the proportion equation
149,574.68 : 206,409.76 = 82,506.68 : x - Step 2: Convert to fraction form
149,574.68/206,409.76 = 82,506.68/x - Step 3: Cross multiply
149,574.68x = 206,409.76 × 82,506.68 - Step 4: Simplify right side
149,574.68x = 17,030,184,017.20 - Step 5: Solve for x
x = 17,030,184,017.20/149,574.68 - Step 6: Final answer
x = 113,857.40
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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.