Finding the Fourth Proportional to 113,763.79, 156,992.97 and 62,776.99
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Solution
The fourth proportional to 113,763.79, 156,992.97 and 62,776.99 is: 86,631.66
Step by Step Solution
- Step 1: Write the proportion equation
113,763.79 : 156,992.97 = 62,776.99 : x - Step 2: Convert to fraction form
113,763.79/156,992.97 = 62,776.99/x - Step 3: Cross multiply
113,763.79x = 156,992.97 × 62,776.99 - Step 4: Simplify right side
113,763.79x = 9,855,546,107.76 - Step 5: Solve for x
x = 9,855,546,107.76/113,763.79 - Step 6: Final answer
x = 86,631.66
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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.