Finding the Fourth Proportional to 108,839.79, 150,190.74 and 61,083.99
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Solution
The fourth proportional to 108,839.79, 150,190.74 and 61,083.99 is: 84,291.32
Step by Step Solution
- Step 1: Write the proportion equation
108,839.79 : 150,190.74 = 61,083.99 : x - Step 2: Convert to fraction form
108,839.79/150,190.74 = 61,083.99/x - Step 3: Cross multiply
108,839.79x = 150,190.74 × 61,083.99 - Step 4: Simplify right side
108,839.79x = 9,174,249,660.25 - Step 5: Solve for x
x = 9,174,249,660.25/108,839.79 - Step 6: Final answer
x = 84,291.32
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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.