Finding the Fourth Proportional to 125,985.92, 173,782.40 and 74,964.15
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Solution
The fourth proportional to 125,985.92, 173,782.40 and 74,964.15 is: 103,404.02
Step by Step Solution
- Step 1: Write the proportion equation
125,985.92 : 173,782.40 = 74,964.15 : x - Step 2: Convert to fraction form
125,985.92/173,782.40 = 74,964.15/x - Step 3: Cross multiply
125,985.92x = 173,782.40 × 74,964.15 - Step 4: Simplify right side
125,985.92x = 13,027,449,526.14 - Step 5: Solve for x
x = 13,027,449,526.14/125,985.92 - Step 6: Final answer
x = 103,404.02
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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.