Finding the Fourth Proportional to 121,345.64, 167,462.68 and 67,631.03
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Solution
The fourth proportional to 121,345.64, 167,462.68 and 67,631.03 is: 93,333.99
Step by Step Solution
- Step 1: Write the proportion equation
121,345.64 : 167,462.68 = 67,631.03 : x - Step 2: Convert to fraction form
121,345.64/167,462.68 = 67,631.03/x - Step 3: Cross multiply
121,345.64x = 167,462.68 × 67,631.03 - Step 4: Simplify right side
121,345.64x = 11,325,672,697.65 - Step 5: Solve for x
x = 11,325,672,697.65/121,345.64 - Step 6: Final answer
x = 93,333.99
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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.