Finding the Fourth Proportional to 103,524.05, 142,859.88 and 58,203.95
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Solution
The fourth proportional to 103,524.05, 142,859.88 and 58,203.95 is: 80,319.59
Step by Step Solution
- Step 1: Write the proportion equation
103,524.05 : 142,859.88 = 58,203.95 : x - Step 2: Convert to fraction form
103,524.05/142,859.88 = 58,203.95/x - Step 3: Cross multiply
103,524.05x = 142,859.88 × 58,203.95 - Step 4: Simplify right side
103,524.05x = 8,315,009,312.53 - Step 5: Solve for x
x = 8,315,009,312.53/103,524.05 - Step 6: Final answer
x = 80,319.59
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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.