Finding the Fourth Proportional to 122,495.13, 183,742.70 and 39,389.13
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Solution
The fourth proportional to 122,495.13, 183,742.70 and 39,389.13 is: 59,083.70
Step by Step Solution
- Step 1: Write the proportion equation
122,495.13 : 183,742.70 = 39,389.13 : x - Step 2: Convert to fraction form
122,495.13/183,742.70 = 39,389.13/x - Step 3: Cross multiply
122,495.13x = 183,742.70 × 39,389.13 - Step 4: Simplify right side
122,495.13x = 7,237,465,096.85 - Step 5: Solve for x
x = 7,237,465,096.85/122,495.13 - Step 6: Final answer
x = 59,083.70
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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.