Finding the Fourth Proportional to 139,402.04, 192,375.68 and 75,739.80
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Solution
The fourth proportional to 139,402.04, 192,375.68 and 75,739.80 is: 104,521.39
Step by Step Solution
- Step 1: Write the proportion equation
139,402.04 : 192,375.68 = 75,739.80 : x - Step 2: Convert to fraction form
139,402.04/192,375.68 = 75,739.80/x - Step 3: Cross multiply
139,402.04x = 192,375.68 × 75,739.80 - Step 4: Simplify right side
139,402.04x = 14,570,495,528.06 - Step 5: Solve for x
x = 14,570,495,528.06/139,402.04 - Step 6: Final answer
x = 104,521.39
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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.