Finding the Fourth Proportional to 103,575.19, 142,932.49 and 58,860.31
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Solution
The fourth proportional to 103,575.19, 142,932.49 and 58,860.31 is: 81,226.50
Step by Step Solution
- Step 1: Write the proportion equation
103,575.19 : 142,932.49 = 58,860.31 : x - Step 2: Convert to fraction form
103,575.19/142,932.49 = 58,860.31/x - Step 3: Cross multiply
103,575.19x = 142,932.49 × 58,860.31 - Step 4: Simplify right side
103,575.19x = 8,413,050,670.47 - Step 5: Solve for x
x = 8,413,050,670.47/103,575.19 - Step 6: Final answer
x = 81,226.50
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1.5x scale
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.