Finding the Fourth Proportional to 148,220.81, 204,493.60 and 83,681.99
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Solution
The fourth proportional to 148,220.81, 204,493.60 and 83,681.99 is: 115,452.29
Step by Step Solution
- Step 1: Write the proportion equation
148,220.81 : 204,493.60 = 83,681.99 : x - Step 2: Convert to fraction form
148,220.81/204,493.60 = 83,681.99/x - Step 3: Cross multiply
148,220.81x = 204,493.60 × 83,681.99 - Step 4: Simplify right side
148,220.81x = 17,112,431,390.26 - Step 5: Solve for x
x = 17,112,431,390.26/148,220.81 - Step 6: Final answer
x = 115,452.29
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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.