Finding the Fourth Proportional to 113,935.42, 170,903.14 and 74,525.68
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Solution
The fourth proportional to 113,935.42, 170,903.14 and 74,525.68 is: 111,788.53
Step by Step Solution
- Step 1: Write the proportion equation
113,935.42 : 170,903.14 = 74,525.68 : x - Step 2: Convert to fraction form
113,935.42/170,903.14 = 74,525.68/x - Step 3: Cross multiply
113,935.42x = 170,903.14 × 74,525.68 - Step 4: Simplify right side
113,935.42x = 12,736,672,722.64 - Step 5: Solve for x
x = 12,736,672,722.64/113,935.42 - Step 6: Final answer
x = 111,788.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.