Finding the Fourth Proportional to 103,444.18, 142,756.67 and 58,121.28
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Solution
The fourth proportional to 103,444.18, 142,756.67 and 58,121.28 is: 80,209.45
Step by Step Solution
- Step 1: Write the proportion equation
103,444.18 : 142,756.67 = 58,121.28 : x - Step 2: Convert to fraction form
103,444.18/142,756.67 = 58,121.28/x - Step 3: Cross multiply
103,444.18x = 142,756.67 × 58,121.28 - Step 4: Simplify right side
103,444.18x = 8,297,200,534.24 - Step 5: Solve for x
x = 8,297,200,534.24/103,444.18 - Step 6: Final answer
x = 80,209.45
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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.