Finding the Fourth Proportional to 103,288.24, 142,537.20 and 57,966.17
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Solution
The fourth proportional to 103,288.24, 142,537.20 and 57,966.17 is: 79,993.00
Step by Step Solution
- Step 1: Write the proportion equation
103,288.24 : 142,537.20 = 57,966.17 : x - Step 2: Convert to fraction form
103,288.24/142,537.20 = 57,966.17/x - Step 3: Cross multiply
103,288.24x = 142,537.20 × 57,966.17 - Step 4: Simplify right side
103,288.24x = 8,262,335,566.52 - Step 5: Solve for x
x = 8,262,335,566.52/103,288.24 - Step 6: Final answer
x = 79,993.00
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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.