Finding the Fourth Proportional to 159,402.67, 239,140.89 and 54,221.63
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Solution
The fourth proportional to 159,402.67, 239,140.89 and 54,221.63 is: 81,344.99
Step by Step Solution
- Step 1: Write the proportion equation
159,402.67 : 239,140.89 = 54,221.63 : x - Step 2: Convert to fraction form
159,402.67/239,140.89 = 54,221.63/x - Step 3: Cross multiply
159,402.67x = 239,140.89 × 54,221.63 - Step 4: Simplify right side
159,402.67x = 12,966,607,659.75 - Step 5: Solve for x
x = 12,966,607,659.75/159,402.67 - Step 6: Final answer
x = 81,344.99
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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.