Finding the Fourth Proportional to 105,242.13, 145,236.99 and 62,825.28
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Solution
The fourth proportional to 105,242.13, 145,236.99 and 62,825.28 is: 86,700.59
Step by Step Solution
- Step 1: Write the proportion equation
105,242.13 : 145,236.99 = 62,825.28 : x - Step 2: Convert to fraction form
105,242.13/145,236.99 = 62,825.28/x - Step 3: Cross multiply
105,242.13x = 145,236.99 × 62,825.28 - Step 4: Simplify right side
105,242.13x = 9,124,554,563.11 - Step 5: Solve for x
x = 9,124,554,563.11/105,242.13 - Step 6: Final answer
x = 86,700.59
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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.