Finding the Fourth Proportional to 109,938.66, 151,715.40 and 62,190.99
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Solution
The fourth proportional to 109,938.66, 151,715.40 and 62,190.99 is: 85,823.59
Step by Step Solution
- Step 1: Write the proportion equation
109,938.66 : 151,715.40 = 62,190.99 : x - Step 2: Convert to fraction form
109,938.66/151,715.40 = 62,190.99/x - Step 3: Cross multiply
109,938.66x = 151,715.40 × 62,190.99 - Step 4: Simplify right side
109,938.66x = 9,435,330,924.25 - Step 5: Solve for x
x = 9,435,330,924.25/109,938.66 - Step 6: Final answer
x = 85,823.59
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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.