Finding the Fourth Proportional to 121,041.68, 167,021.24 and 67,319.88
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Solution
The fourth proportional to 121,041.68, 167,021.24 and 67,319.88 is: 92,892.38
Step by Step Solution
- Step 1: Write the proportion equation
121,041.68 : 167,021.24 = 67,319.88 : x - Step 2: Convert to fraction form
121,041.68/167,021.24 = 67,319.88/x - Step 3: Cross multiply
121,041.68x = 167,021.24 × 67,319.88 - Step 4: Simplify right side
121,041.68x = 11,243,849,834.25 - Step 5: Solve for x
x = 11,243,849,834.25/121,041.68 - Step 6: Final answer
x = 92,892.38
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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.