Finding the Fourth Proportional to 149,600.81, 206,420.91 and 89,177.07
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Solution
The fourth proportional to 149,600.81, 206,420.91 and 89,177.07 is: 123,047.55
Step by Step Solution
- Step 1: Write the proportion equation
149,600.81 : 206,420.91 = 89,177.07 : x - Step 2: Convert to fraction form
149,600.81/206,420.91 = 89,177.07/x - Step 3: Cross multiply
149,600.81x = 206,420.91 × 89,177.07 - Step 4: Simplify right side
149,600.81x = 18,408,011,940.53 - Step 5: Solve for x
x = 18,408,011,940.53/149,600.81 - Step 6: Final answer
x = 123,047.55
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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.