Finding the Fourth Proportional to 171,909.12, 237,173.76 and 112,327.68
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Solution
The fourth proportional to 171,909.12, 237,173.76 and 112,327.68 is: 154,972.45
Step by Step Solution
- Step 1: Write the proportion equation
171,909.12 : 237,173.76 = 112,327.68 : x - Step 2: Convert to fraction form
171,909.12/237,173.76 = 112,327.68/x - Step 3: Cross multiply
171,909.12x = 237,173.76 × 112,327.68 - Step 4: Simplify right side
171,909.12x = 26,641,178,217.68 - Step 5: Solve for x
x = 26,641,178,217.68/171,909.12 - Step 6: Final answer
x = 154,972.45
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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.