Finding the Fourth Proportional to 145,824.56, 201,237.84 and 78,756.56
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Solution
The fourth proportional to 145,824.56, 201,237.84 and 78,756.56 is: 108,684.02
Step by Step Solution
- Step 1: Write the proportion equation
145,824.56 : 201,237.84 = 78,756.56 : x - Step 2: Convert to fraction form
145,824.56/201,237.84 = 78,756.56/x - Step 3: Cross multiply
145,824.56x = 201,237.84 × 78,756.56 - Step 4: Simplify right side
145,824.56x = 15,848,800,020.23 - Step 5: Solve for x
x = 15,848,800,020.23/145,824.56 - Step 6: Final answer
x = 108,684.02
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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.