Finding the Fourth Proportional to 143,140.37, 197,586.81 and 122,916.02
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Solution
The fourth proportional to 143,140.37, 197,586.81 and 122,916.02 is: 169,669.70
Step by Step Solution
- Step 1: Write the proportion equation
143,140.37 : 197,586.81 = 122,916.02 : x - Step 2: Convert to fraction form
143,140.37/197,586.81 = 122,916.02/x - Step 3: Cross multiply
143,140.37x = 197,586.81 × 122,916.02 - Step 4: Simplify right side
143,140.37x = 24,286,583,301.76 - Step 5: Solve for x
x = 24,286,583,301.76/143,140.37 - Step 6: Final answer
x = 169,669.70
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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.